This lesson introduces the concept of multiplication as a process of grouping and repeated addition, designed specifically for autistic 11-year-olds who find math challenging. Using laser-cut, engraved acrylic chips displaying numbers and dots, students engage in hands-on activities to explore multiplication concepts over five 20-minute sessions. By physically grouping and counting the chips, students gain a tangible understanding of multiplication. Each session concludes with a brief reflection to reinforce learning.
This plan is based on the Icelandic curriculum in mathematics and is don whith help of chatgpt.com
https://chatgpt.com/share/67239c35-2650-800d-9a7f-8bc9e196bc82
Introduce multiplication as a way of creating equal groups. Use the acrylic chips to demonstrate how we can form groups by adding identical numbers together. Instructions
Begin with a short, simple explanation: “Multiplication helps us find out how many items we have in equal groups.”
Show a few examples using the chips:
Example 1: Two groups of 3 chips each (3 + 3).
Example 2: Three groups of 2 chips each (2 + 2 + 2).
Encourage students to physically arrange chips into groups as shown.
Reflection: Ask students to draw or describe one way they used the chips to create groups today.
Expand on yesterday’s activity by introducing "times" (×) as another way to talk about groups.
Practice multiplication using chips to see patterns, reinforcing the connection between addition and multiplication.
Reflection: Ask students to describe or draw one pattern they noticed.
Students solve simple word problems using the chips, practicing multiplication in real-world scenarios.
A review day to reinforce concepts and encourage students to articulate their understanding.
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