Learning Intention: (Math)- Students analyze quantities to 1000
- Students explain and analyze patterns in a variety of contexts
I Can:
- Count, represent quantities, and identify place value of digits up to 1000
- Identify identify and create increasing and decreasing patterns
Understanding place value is an important part of math learning in grade 2. It helps children make sense of numbers and how they work. Place value teaches students that the position of a digit determines its value (for example, the “2” in 24 means 20, not just 2). This understanding is the foundation for adding, subtracting, regrouping, and later skills like multiplication and division.
After learning about place value, students played a fun game called Race to 100. Through this game, they are beginning to understand regrouping—trading 10 ones for a ten, and 10 tens for a hundred. The grade 2s loved playing and keep asking to play it again! This is a simple game to re-create at home! Students can make a base 10 mat on paper and they can use lego pieces: 1x1 for ones, 1x10 or 2x5 for tens, and a 10x10 base plate for 100s!
What Is an Increasing (or Growing) Pattern?
A pattern with a repeated increase is called an increasing (or growing) pattern. Here are some examples:
1, 2, 3, 4, … (each step increases by 1)
3, 8, 13, 18, 23, … (each step increases by 5)
Increasing patterns can also be based on shapes or actions instead of numbers, for example:
Clap 1 time, clap 3 times, clap 5 times, clap 7 times, …
Describing an Increasing or Growing Pattern
When you describe a pattern like this one, you can say, “The pattern starts at 3 and goes up by 2 each time.”
3, 5, 7, 9, …
When you describe a pattern like this one, you can say, “The pattern starts at 12 and goes up by 3 each time.”
Students used manipulatives to explore growing patterns. They learned to show these patterns on a number line by “jumping” from one number to the next. For example, if the pattern was 2 blocks, 4 blocks, 6 blocks, and so on, students circled 2, 4, 6, etc. on the number line.
