Adding with Teen Numbers
Count on from teen numbers (11-19)
Add small numbers to teen numbers
Develop confidence in mathematical thinking
“The fear of Yahweh is the beginning of wisdom. The knowledge of the Holy One is understanding.”
— Proverbs 9:10 (WEB)Just as we build understanding in math by learning step by step, we grow in wisdom by learning about God
Greet student and review previous day's teen number addition
Demonstrate counting on from teen numbers
Use a large floor number line to physically hop and count on
Simpler: Use fewer hops, smaller numbers
Challenge: Add two small numbers to a teen number
Review counting on strategy
Coming up: Tomorrow we'll use a number line to add teen numbers
Counting on is a key early math strategy for addition
Remembering to start with the larger number when counting on
Child confidently starting at teen number and counting forward