MA19.1.1 | ALEX

Mathematics (2019) Grade(s): 1

MA19.1.1
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.

Unpacked Content

Knowledge

Students know:

addition and subtraction strategies and models.
how to form an equation.

Skills

Students are able to:

represent quantities and operations (addition & subtraction) with concrete objects, pictorially, or symbolically.
Use informal and mathematical language to communicate the representations.
Accurately compute sums and differences.

Understanding

Students understand that:

addition is both putting together and adding to. subtraction is taking apart, taking from, and comparisons.
Mathematical problems can be solved using a variety of strategies. models, and representations.
variables in the form of blanks, boxes, or letters, represent unknown quantities when representing mathematical situations algebraically.

Vocabulary

Change unknown
Put together
Take apart
Compare

Aligned Learning Resources

Making a Difference Solving Word Problems

What Is the Difference?

Finding the Difference Using the Crayon Box

Introducing Addition and Subtraction Word Problems

Drawing a Formative and Summative Assessment for Word Problems

Fruit Loop Sorting, Graphing, and Problem-Solving

Modeling With Tape Diagrams

Adding Up and Taking Away

Design by Adaptive Theme