
TEKS & Objectives
7.1.A apply mathematics to problems arising in everyday life, society, and the workplace
7.1.C select tools, including real objects, manipulatives, paper and pencil, and technology as appropriate, and techniques, including mental math, estimation, and number sense as appropriate, to solve problems
We will strengthen our number sense.
I will practice mathematical thinking.
1. Complete warmup.

2. Watch video.
GG Composing & Decomposing Numbers (11-19) K2
Review

3. Try it youself.
How fast can you identify the number?

4. Find addends using manipulatives.


5. Count a large collection of items.
- You will again count a large collection of small objects.
- Use a grouping strategy:
- You can try grouping them by 2s, 5s, or 10s. You can also use a ten frame for your groups.
- If you count something like toothpicks, you can use cups to keep your groups separate.

6. “Genius Challenge – Composing and Decomposing Numbers (11-19)”
