diff --git a/src/design_notebooks/2025fall/hd2609.md b/src/design_notebooks/2025fall/hd2609.md
index d01cf974..45474a25 100644
--- a/src/design_notebooks/2025fall/hd2609.md
+++ b/src/design_notebooks/2025fall/hd2609.md
@@ -48,8 +48,29 @@ Summary: Now all labs are finished. For next week, I will find meeting time with
 
 ## Week of October 12th
 
+### Project Work
+
 * Did more Verilog practice questions on the HDLBits. I finished until "Connecting to poarts by position" problem.
   
 Summary: This week I did not meet with team because I was busy with midterms and presentations. I did not have time to meet with team. I have one more midterm next week on Wednesday. I plan to meet with team on Friday or on weekend. 
 
+## Week of October 19th
+
+### Project Work
+
+* Did more Verilog practice questions on the HDLBits. I finished until "Adder 1" problem.
+* Finished reading lab 5, even if it is incomplete. 
+  
+Summary: I have one midterm and a presentation to prepare this week, so not a lot progress. Howver, this week I met with team and discussed the next step. I should work on the rest of the labs. Then I will assist other memebers in the future.
+
+## Week of October 26th
+
+### Project Work
+
+* Did more Verilog practice questions on the HDLBits. I finished until "Adder-substractor" problem.
+* Started testing some code of Lab 5 in VScode, but met some bugs. It seems due to the version of Verilog. Some code are not supported by the current version installed in my VScode.
+  
+Summary: This week I met with team on Wednesday, which is the weekly meeting in this semester. The team will work on Lab 1 and Lab 2 next week. I will prepare to assist on them. Also, due to the bug I met, I plan to debug it next week. 
+
+