In this lesson, students utilized their knowledge of addition and subtraction to complete a worksheet about themselves:
Represent and solve problems involving addition and subtraction.
CCSS.MATH.CONTENT.1.OA.A.1
CCSS.MATH.CONTENT.1.OA.A.1
- Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem.
Math lessons are often carried out through station teaching. The video below is an example of a station in which students are using manipulatives to learn about two digit numbers:
Understand place value.
- CCSS.MATH.CONTENT.1.NBT.B.2
Understand that the two digits of a two-digit number represent amounts of tens and ones. Understand the following as special cases. - CCSS.MATH.CONTENT.1.NBT.B.2.B
The numbers from 11 to 19 are composed of a ten and one, two, three, four, five, six, seven, eight, or nine ones.