ALEX Classroom Resources

   View Standards     Standard(s): [MA2019] (1) 1 :

1. Use addition and subtraction to solve word problems within 20 by using concrete objects, drawings, and equations with a symbol for the unknown number to represent the problem.

a. Add to with change unknown to solve word problems within 20.

b. Take from with change unknown to solve word problems within 20.

c. Put together/take apart with addend unknown to solve word problems within 20.

d. Compare quantities, with difference unknown, bigger unknown, and smaller unknown while solving word problems within 20.

Tape diagrams are another visual strategy students can use to model addition and subtraction. If this strategy works well for students, encourage them to use it when solving story problems.

   View Standards     Standard(s): [MA2019] (1) 1 :

1. Use addition and subtraction to solve word problems within 20 by using concrete objects, drawings, and equations with a symbol for the unknown number to represent the problem.

a. Add to with change unknown to solve word problems within 20.

b. Take from with change unknown to solve word problems within 20.

c. Put together/take apart with addend unknown to solve word problems within 20.

d. Compare quantities, with difference unknown, bigger unknown, and smaller unknown while solving word problems within 20.

Children will practice and explore strategies for solving addition and subtraction problems, such as using counters and rulers, performing mental math, and drawing pictures. As children encounter different outlandish scenarios with their PBS KIDS friends, they will explore, reinforce, and advance their addition and subtraction skills.