# STEM land meeting with Swati Sircar

~Poovizhi, Murali and Arun

This week it was a large group of people in the meeting. Coordinators from Aikiyam, Udavi, Isai ambalam and AITI joined the meeting. Swati Sircar joined the meeting online. At first Sundar demonstrated Scratch projects on finding LCM created by 8th grade and program on Graph created by 9th grade children which asks the user to find the point and completes by drawing a bear. Then we listed few topics to discuss with Swati. Swati explained about Trignometry. She said we can ask children to come up with 6 possible ratios from a right angle triangle and map the names.

Then different methods of teaching multiplications

7×9 = 7×10-7

To explain and use multiplication in

1. Scaling
3. Cartesian product (Choices of combinations)
4. Area (rows and column)
5. Rate (price and qty)

Then we moved to Division and she explained how to spit 11/3. For example to draw three circles and draw apples in each circle equally and the remaining is the reminder.

Then we discussed about simplification. For simplification children need to learn divisibility rules for 2,3,4,5,9,10 and 11

Followed with we had a conversation on negative exponential

2^-x = 1/2^x

(1/2)^-5 = (2)^5

2^3 = 8

2^2 = 4

2^1 = 2

2^0 = 1

2^-1 = 1/2

2^-2 = 1/4

2^-3 = 1/8