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 KA 2011 December Exercises Data

Exercise Data from 2011 December logs

01 Dec 2011 - 13 Dec 2011

Graphs

Raw Data (Thanks Ben Komalo)

Exercise	# students	Proficiency Rate	Avg # to proficiency	#right / #total (% right)
corresponding_angles	2708	74.5%	 7.0	40263 / 40938 (98.4 %)
alternate_exterior_angles	2156	77.0%	 7.4	28582 / 29055 (98.4 %)
alternate_interior_angles	2157	76.4%	 7.6	31470 / 32068 (98.1 %)
vertical_angles	3528	74.1%	 6.7	51689 / 52764 (98.0 %)
reading_bar_charts_1	18386	55.2%	 5.9	110692 / 112971 (98.0 %)
subtraction_1	40531	87.8%	 6.4	458810 / 468849 (97.9 %)
multiplication_0.5	41861	88.1%	 8.0	656583 / 675613 (97.2 %)
interpreting_linear_equations	2417	67.4%	 7.2	28156 / 29074 (96.8 %)
addition_1	70329	78.6%	 8.9	1190846 / 1230476 (96.8 %)
angle_types	15739	56.7%	 8.4	190260 / 198132 (96.0 %)
number_line_2	60038	61.5%	 7.0	412400 / 430214 (95.9 %)
multiplication_1	38951	82.5%	 7.9	461929 / 482375 (95.8 %)
multiplication_1.5	28649	77.4%	 7.0	237173 / 248653 (95.4 %)
absolute_value	15026	51.2%	 9.3	148264 / 155587 (95.3 %)
addition_2	44996	89.1%	 6.9	381906 / 401591 (95.1 %)
recognizing_fractions	10830	54.2%	 7.6	87604 / 92532 (94.7 %)
reading_line_charts_1	15928	55.1%	 6.9	80060 / 84657 (94.6 %)
number_line	77946	58.5%	 7.0	503572 / 532220 (94.6 %)
division_0.5	31831	83.3%	 7.9	330191 / 350503 (94.2 %)
division_1.5	19345	72.8%	 7.7	166148 / 176671 (94.0 %)
division_1	25356	77.6%	 7.6	227422 / 242295 (93.9 %)
properties_of_numbers_1	40845	54.1%	 7.3	241280 / 258441 (93.4 %)
place_value	24143	51.9%	 7.5	130627 / 139908 (93.4 %)
subtraction_2	35388	76.0%	 7.3	233377 / 250356 (93.2 %)
reading_tables_1	33540	54.5%	 7.8	178673 / 191918 (93.1 %)
converting_decimals_to_fractions_1	4390	75.0%	 7.8	33523 / 36004 (93.1 %)
recognizing_fractions_0.5	14088	57.3%	 8.0	83139 / 89984 (92.4 %)
parabola_intuition_1	2073	45.5%	 6.1	8048 / 8736 (92.1 %)
converting_percents_to_decimals	3129	63.3%	 8.5	22262 / 24184 (92.1 %)
ordering_negative_numbers	10125	58.6%	 8.4	66763 / 72597 (92.0 %)
inscribed_angles_2	735	55.6%	 8.1	4224 / 4608 (91.7 %)
complementary_and_supplementary_angles	4858	56.7%	 8.1	27320 / 29969 (91.2 %)
understanding_decimals_place_value	25795	84.4%	 8.1	191506 / 211011 (90.8 %)
inscribed_angles_3	727	54.2%	 7.5	3743 / 4122 (90.8 %)
same_side_exterior_angles	1460	81.0%	 7.6	9740 / 10750 (90.6 %)
line_graph_intuition	4107	49.7%	 7.3	21215 / 23410 (90.6 %)
telling_time_0.5	29054	55.1%	 8.9	175083 / 193380 (90.5 %)
distributive_property	18404	51.3%	 8.6	98407 / 108967 (90.3 %)
dividing_decimals_2	3410	75.0%	 8.0	21590 / 23946 (90.2 %)
dividing_decimals	4473	48.8%	 7.0	19058 / 21156 (90.1 %)
recognizing_rays_lines_and_line_segments	25102	59.6%	12.1	316396 / 351724 (90.0 %)
complementary_angles	5246	71.4%	 8.1	34364 / 38185 (90.0 %)
supplementary_angles	4150	74.4%	 8.0	26914 / 29951 (89.9 %)
subtracting_fractions_with_common_denominators	6932	64.2%	 9.5	48873 / 54563 (89.6 %)
division_2	16226	59.9%	 7.7	90240 / 101130 (89.2 %)
equivalent_fractions	8525	59.0%	 8.1	57293 / 64334 (89.1 %)
equation_of_a_circle_1	868	57.3%	 8.3	4947 / 5559 (89.0 %)
addition_4	32259	66.9%	 9.0	223033 / 251833 (88.6 %)
recognizing_conic_sections	16294	57.1%	16.5	268993 / 304072 (88.5 %)
fractions_cut_and_copy_2	1880	43.8%	 8.2	8037 / 9083 (88.5 %)
division_4	7325	55.8%	 7.2	34902 / 39485 (88.4 %)
addition_3	41255	73.6%	 9.0	309444 / 350350 (88.3 %)
multiplying_and_dividing_negative_numbers	8109	67.9%	10.7	74488 / 84510 (88.1 %)
axis_of_symmetry	15560	60.6%	13.5	184777 / 209847 (88.1 %)
rate_problems_0.5	2780	52.4%	 8.0	14353 / 16319 (88.0 %)
dividing_decimals_1	5642	62.9%	 7.7	31194 / 35502 (87.9 %)
converting_decimals_to_percents	4430	61.7%	11.2	36292 / 41309 (87.9 %)
one_step_equations_0.5	5376	79.3%	 9.8	52027 / 59226 (87.8 %)
logarithms_1	3564	53.7%	10.3	25735 / 29330 (87.7 %)
subtraction_3	24239	65.8%	 9.0	158909 / 181561 (87.5 %)
properties_of_numbers_2	25500	48.2%	12.3	170509 / 195317 (87.3 %)
adding_and_subtracting_decimals_word_problems	12218	80.1%	 9.4	96865 / 111034 (87.2 %)
special_derivatives	1219	69.0%	 9.4	10449 / 12025 (86.9 %)
functions_1	3742	56.5%	 9.4	23662 / 27236 (86.9 %)
equivalent_fractions_2	7616	49.7%	 9.3	43599 / 50152 (86.9 %)
adding_negative_numbers	31369	54.7%	10.6	237914 / 273663 (86.9 %)
multiplication_2	26415	62.7%	 9.7	189079 / 217857 (86.8 %)
subtraction_4	18359	62.6%	 9.4	119324 / 137723 (86.6 %)
arithmetic_word_problems_2	22673	50.5%	10.4	137003 / 158310 (86.5 %)
adding_vectors	1214	42.2%	 8.7	5546 / 6418 (86.4 %)
adding_decimals	32737	46.0%	 9.8	178392 / 206769 (86.3 %)
subtracting_decimals	17431	45.6%	 9.9	92908 / 108079 (86.0 %)
systems_of_equations_with_elimination	435	69.2%	 7.5	2362 / 2752 (85.8 %)
reading_tables_2	24947	47.1%	 9.6	134296 / 156518 (85.8 %)
graphing_points	9016	48.4%	 8.6	47765 / 55651 (85.8 %)
telling_time	23030	48.3%	11.5	148661 / 173472 (85.7 %)
exploring_mean_and_median	3936	37.8%	 8.2	15281 / 17829 (85.7 %)
same_side_interior_angles	1893	70.2%	 9.9	13381 / 15712 (85.2 %)
comparing_fractions_1	5348	54.7%	 9.3	35018 / 41214 (85.0 %)
multiplying_radicals	1962	50.3%	10.7	11865 / 13974 (84.9 %)
multiplication_4	12754	56.0%	 9.3	78365 / 92268 (84.9 %)
radians_and_degrees	1382	51.3%	 8.3	6923 / 8184 (84.6 %)
expressing_ratios_as_fractions	5086	53.3%	10.8	33839 / 40112 (84.4 %)
evaluating_expressions_1	3376	53.5%	10.3	22311 / 26517 (84.1 %)
systems_of_equations_with_elimination_0.5	604	69.2%	 9.0	3899 / 4642 (84.0 %)
logarithms_2	2730	56.8%	15.5	25616 / 30519 (83.9 %)
equation_of_an_ellipse	552	47.6%	11.2	3377 / 4030 (83.8 %)
greatest_common_divisor	8429	49.5%	13.3	65392 / 78388 (83.4 %)
rounding_whole_numbers	17869	48.2%	12.5	119197 / 143167 (83.3 %)
congruent_triangles_1	2058	56.8%	16.5	21083 / 25296 (83.3 %)
parallel_lines_1	3510	48.2%	13.2	27559 / 33104 (83.2 %)
divisibility_0.5	5475	49.8%	 8.3	30855 / 37094 (83.2 %)
exponents_4	3183	48.6%	12.0	20391 / 24527 (83.1 %)
writing_expressions_2	2088	45.7%	10.3	11058 / 13328 (83.0 %)
arithmetic_word_problems	1168	41.4%	 8.8	5172 / 6245 (82.8 %)
parabola_intuition_2	1111	32.7%	 9.6	4020 / 4859 (82.7 %)
converting_mixed_numbers_and_improper_fractions	3856	43.7%	10.4	20870 / 25276 (82.6 %)
congruent_triangles_2	1482	51.6%	13.1	11129 / 13466 (82.6 %)
adding_fractions_with_common_denominators	11292	51.2%	14.1	93350 / 113184 (82.5 %)
converting_repeating_decimals_to_fractions_1	2182	42.4%	13.2	13293 / 16227 (81.9 %)
inscribed_angles_1	1252	39.7%	11.7	6659 / 8141 (81.8 %)
exponents_3	4657	47.6%	13.0	32272 / 39469 (81.8 %)
derivatives_1	1726	48.7%	10.0	9260 / 11318 (81.8 %)
new_definitions_2	614	40.4%	13.8	3618 / 4426 (81.7 %)
multiplying_decimals	10963	38.2%	 9.9	51855 / 63456 (81.7 %)
multiplying_polynomials	1649	46.5%	10.2	9336 / 11444 (81.6 %)
comparing_absolute_values	11868	51.1%	16.0	116591 / 142930 (81.6 %)
arithmetic_word_problems_1	36665	43.9%	11.6	241529 / 296086 (81.6 %)
solving_for_the_x-intercept	2066	51.6%	13.4	15196 / 18658 (81.4 %)
quadrilateral_angles	2074	46.9%	13.8	15122 / 18587 (81.4 %)
measuring_angles	26502	42.7%	 9.6	135380 / 167193 (81.0 %)
power_rule	1169	52.9%	 7.7	5410 / 6685 (80.9 %)
multiplication_3	16456	48.3%	10.6	98316 / 121510 (80.9 %)
derivative_intuition	1832	40.4%	 9.1	8276 / 10237 (80.8 %)
converting_decimals_to_fractions_2	3793	46.5%	13.5	26595 / 32906 (80.8 %)
comparing_fractions_2	4160	51.5%	12.4	31239 / 38650 (80.8 %)
triangle_angles_1	3412	43.9%	12.7	20910 / 26009 (80.4 %)
rounding_numbers	13661	41.4%	13.6	85870 / 107248 (80.1 %)
triangle_types	6015	55.6%	20.9	75388 / 94286 (80.0 %)
product_rule	1336	56.1%	 9.4	7741 / 9673 (80.0 %)
plugging_in_values	1901	43.1%	10.5	9764 / 12213 (79.9 %)
counting_1	20474	43.5%	17.6	156781 / 196391 (79.8 %)
new_definitions_1	978	44.5%	12.6	5528 / 6935 (79.7 %)
fractions_cut_and_copy_1	3223	37.1%	13.9	18995 / 23871 (79.6 %)
counting_2	12956	46.0%	18.9	112396 / 141682 (79.3 %)
arithmetic_challenge	15653	17.5%	46.5	162895 / 205340 (79.3 %)
evaluating_expressions_2	2407	44.5%	13.0	16686 / 21068 (79.2 %)
estimation_with_decimals	7443	43.8%	13.3	48409 / 61169 (79.1 %)
vertical_angles_2	2859	52.6%	10.9	17409 / 22032 (79.0 %)
lhopitals_rule	885	50.7%	15.6	7736 / 9796 (79.0 %)
scientific_notation	4799	43.7%	14.7	33767 / 42816 (78.9 %)
equation_of_a_circle_2	432	42.1%	10.6	2075 / 2632 (78.8 %)
trigonometry_2	1279	50.7%	14.3	9862 / 12527 (78.7 %)
quotient_rule	1235	48.2%	13.4	8284 / 10525 (78.7 %)
linear_equations_1	7002	56.8%	17.0	73030 / 92840 (78.7 %)
dividing_fractions	5843	39.7%	14.5	39264 / 49881 (78.7 %)
division_3	11728	43.3%	13.1	74905 / 95845 (78.2 %)
systems_of_equations_with_substitution	754	52.4%	 9.8	4394 / 5625 (78.1 %)
adding_subtracting_mixed_numbers_1	2572	35.3%	12.8	13753 / 17601 (78.1 %)
simplifying_fractions	8891	37.4%	13.5	53852 / 68997 (78.0 %)
linear_equations_2	5352	56.8%	15.9	51759 / 66352 (78.0 %)
expressions_with_unknown_variables_2	610	32.3%	 9.3	2137 / 2739 (78.0 %)
triangle_inequality_theorem	1339	36.0%	15.1	8180 / 10499 (77.9 %)
one_step_equations	6301	46.8%	12.9	48066 / 61843 (77.7 %)
inequalities_on_a_number_line	4826	45.3%	14.5	35555 / 45844 (77.6 %)
negative_number_word_problems	8905	37.8%	18.0	65489 / 84608 (77.4 %)
average_word_problems	1355	34.5%	 9.2	5224 / 6747 (77.4 %)
unit_circle	1976	41.5%	15.4	13718 / 17776 (77.2 %)
angles_2	3552	35.6%	14.0	20158 / 26182 (77.0 %)
significant_figures_1	14249	46.2%	25.6	170127 / 221641 (76.8 %)
prime_factorization	9596	42.2%	18.7	80667 / 105023 (76.8 %)
number_line_3	56081	45.0%	17.0	465247 / 605651 (76.8 %)
functions_2	2188	36.9%	14.9	13370 / 17419 (76.8 %)
pre-algebra_challenge	10749	10.2%	96.0	143474 / 186963 (76.7 %)
least_common_multiple	6109	42.0%	14.5	41663 / 54287 (76.7 %)
fraction_word_problems_1	8342	34.7%	16.1	55169 / 71907 (76.7 %)
exponent_rules	5370	46.8%	20.7	55062 / 71927 (76.6 %)
percentage_word_problems_2	914	34.1%	17.0	5224 / 6827 (76.5 %)
graphing_systems_of_inequalities_2	386	51.0%	19.2	3620 / 4731 (76.5 %)
exponents_2	6823	52.6%	17.6	64607 / 84438 (76.5 %)
subtracting_fractions	6599	36.1%	14.6	40184 / 52595 (76.4 %)
order_of_operations	11751	36.4%	18.1	96414 / 126168 (76.4 %)
congruency_postulates	2007	30.5%	19.3	14702 / 19267 (76.3 %)
expressions_with_unknown_variables	604	37.1%	 9.7	2430 / 3189 (76.2 %)
dependent_probability	1017	34.2%	16.3	5759 / 7558 (76.2 %)
linear_inequalities	2118	38.1%	14.6	13235 / 17397 (76.1 %)
scaling_vectors	814	35.9%	11.5	4065 / 5354 (75.9 %)
graphs_of_sine_and_cosine	1502	42.5%	17.3	11198 / 14747 (75.9 %)
exponents_1	12087	49.6%	19.3	133257 / 175466 (75.9 %)
radical_equations	1281	36.2%	10.6	5970 / 7881 (75.8 %)
domain_and_range_0.5	2033	45.7%	17.4	16732 / 22110 (75.7 %)
limits_1	3601	41.3%	16.1	28150 / 37229 (75.6 %)
writing_expressions_1	7830	47.5%	14.4	63232 / 83881 (75.4 %)
mean_median_and_mode	4477	29.6%	17.7	29579 / 39250 (75.4 %)
multiplying_expressions_1	1878	40.3%	13.3	11597 / 15396 (75.3 %)
midpoint_formula	1412	35.6%	18.8	9338 / 12399 (75.3 %)
adding_and_subtracting_negative_numbers	19676	46.2%	17.3	197831 / 262953 (75.2 %)
point_slope_form	988	46.7%	16.1	7377 / 9832 (75.0 %)
ratio_word_problems	9802	34.2%	12.6	50323 / 67168 (74.9 %)
rate_problems_2	489	32.1%	13.3	2240 / 2997 (74.7 %)
angles_of_a_polygon	2064	38.9%	16.0	14085 / 18850 (74.7 %)
solving_quadratics_by_factoring	2041	42.1%	12.8	12171 / 16313 (74.6 %)
multiplying_fractions	6770	42.1%	16.9	56746 / 76184 (74.5 %)
completing_the_square_2	858	33.7%	13.8	4238 / 5686 (74.5 %)
absolute_value_equations	1809	35.9%	 8.9	7726 / 10390 (74.4 %)
prime_numbers	16800	38.6%	18.2	142439 / 192807 (73.9 %)
even_and_odd_functions	1560	39.4%	24.1	18630 / 25194 (73.9 %)
similar_triangles_1	2481	44.9%	16.9	22099 / 29964 (73.8 %)
range_of_a_function	542	38.6%	18.2	3801 / 5152 (73.8 %)
adding_fractions	7647	29.8%	14.4	39630 / 53690 (73.8 %)
inverse_trig_functions	996	39.0%	26.5	9818 / 13344 (73.6 %)
trigonometry_challenge	3438	 5.9%	83.7	22077 / 30043 (73.5 %)
angles_1	7475	33.3%	14.2	38932 / 52986 (73.5 %)
equation_of_a_hyperbola	539	29.3%	18.0	2763 / 3763 (73.4 %)
converting_repeating_decimals_to_fractions_2	1238	31.6%	19.7	8150 / 11110 (73.4 %)
linear_equations_3	6024	44.7%	16.5	50276 / 68600 (73.3 %)
inverses_of_functions	1078	36.8%	12.9	5995 / 8207 (73.0 %)
distance_formula	1934	33.7%	18.1	12963 / 17756 (73.0 %)
adding_and_subtracting_fractions	5124	31.6%	16.3	30114 / 41266 (73.0 %)
quadrilateral_types	4231	42.6%	34.2	66432 / 91540 (72.6 %)
ordering_numbers	4309	30.6%	11.7	19358 / 26734 (72.4 %)
one_step_inequalities	3636	35.6%	18.5	25478 / 35299 (72.2 %)
trigonometry_1	2319	46.4%	15.4	18760 / 26004 (72.1 %)
herons_formula	830	25.7%	15.2	3358 / 4658 (72.1 %)
angle_bisector_theorem	740	25.7%	14.7	3032 / 4225 (71.8 %)
solid_geometry	3914	27.1%	22.0	24937 / 34768 (71.7 %)
graphing_systems_of_equations	1514	30.2%	14.5	7629 / 10642 (71.7 %)
completing_the_square_1	1890	34.6%	15.5	10980 / 15325 (71.6 %)
pythagorean_theorem_2	1405	35.5%	19.3	10069 / 14074 (71.5 %)
graphing_systems_of_inequalities	1037	30.4%	19.2	6279 / 8783 (71.5 %)
graphing_points_2	5151	36.1%	11.8	27342 / 38363 (71.3 %)
parallel_lines_2	2342	35.0%	12.8	11315 / 15903 (71.2 %)
geometry_1	6415	28.7%	18.6	40338 / 56677 (71.2 %)
simplifying_radicals	4745	40.6%	21.8	42488 / 59762 (71.1 %)
graphing_inequalities_2	1052	36.7%	23.4	9150 / 12865 (71.1 %)
algebra_challenge	5469	 2.5%	159.3	36496 / 51623 (70.7 %)
converting_fractions_to_decimals	4307	33.6%	13.9	22335 / 31662 (70.5 %)
pythagorean_theorem_1	3289	33.6%	16.3	20889 / 29651 (70.4 %)
compound_inequalities	2052	34.6%	24.7	19876 / 28224 (70.4 %)
limits_2	1924	41.0%	28.8	22531 / 32187 (70.0 %)
ordering_fractions	6630	27.7%	16.5	39192 / 56362 (69.5 %)
equation_of_a_line	1967	29.0%	19.1	12123 / 17477 (69.4 %)
functions_3	1009	26.0%	23.2	6924 / 9989 (69.3 %)
adding_and_subtracting_polynomials	2351	38.7%	12.4	14890 / 21587 (69.0 %)
writing_proportions	3860	38.7%	20.5	31221 / 45554 (68.5 %)
solutions_to_systems_of_equations	540	68.5%	12.9	5042 / 7359 (68.5 %)
trig_identities_1	1237	28.3%	16.9	7476 / 10925 (68.4 %)
quadratic_equation	1596	31.1%	19.1	11086 / 16237 (68.3 %)
slope_of_a_line	6532	31.0%	25.4	61682 / 90462 (68.2 %)
graphing_linear_equations	3545	32.4%	19.3	27419 / 40242 (68.1 %)
domain_of_a_function	1222	29.6%	27.7	10570 / 15528 (68.1 %)
linear_equations_4	4303	28.0%	24.4	35064 / 51635 (67.9 %)
divisibility	3342	26.2%	15.6	18350 / 27030 (67.9 %)
units	4761	20.4%	27.0	27893 / 42006 (66.4 %)
shifting_and_reflecting_functions	992	30.0%	25.3	7231 / 10888 (66.4 %)
probability_1	4322	19.9%	23.8	27616 / 41705 (66.2 %)
solving_for_the_y-intercept	2615	28.9%	23.0	19143 / 29189 (65.6 %)
parabola_intuition_3	486	16.3%	20.0	1544 / 2352 (65.6 %)
distributive_property_with_variables	2964	36.3%	19.6	25949 / 39576 (65.6 %)
converting_between_slope_intercept_and_standard_form	2247	27.1%	20.9	14583 / 22468 (64.9 %)
kinematic_equations	475	15.8%	22.3	1841 / 2881 (63.9 %)
radians_to_degrees	2124	43.0%	 9.1	10615 / 16664 (63.7 %)
degrees_to_radians	3490	34.3%	12.4	18129 / 28555 (63.5 %)
graphing_inequalities	2228	22.6%	27.1	15358 / 24576 (62.5 %)
line_relationships	1573	23.8%	27.2	10696 / 17132 (62.4 %)
solving_for_a_variable	1465	20.5%	17.4	6986 / 11588 (60.3 %)
systems_of_equations	2555	16.0%	20.5	10412 / 17476 (59.6 %)
rate_problems_1	1225	14.2%	18.2	3495 / 5865 (59.6 %)
direct_and_inverse_variation	1452	25.2%	20.9	8155 / 13926 (58.6 %)
percentage_word_problems_1	4163	17.4%	33.3	25078 / 42975 (58.4 %)
age_word_problems	1793	14.1%	13.2	5045 / 9327 (54.1 %)
chain_rule_1	6640	15.0%	13.8	19453 / 38138 (51.0 %)
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