1st Grade Math Unit 11

Big Idea:

Use multiple strategies to solve, explain, and model addition and subtraction problems.

Student Expectations:

Priority TEKS

1.3B [Supporting] Use objects & pictorial models to solve word problems involving joining, separating, and comparing sets within 20 & unknowns as any one of the terms in the problem such as 2+4=__, 3+7=__, and 5= __-3

1.3D [Supporting] Apply basic fact strategies to add & subtract within 20, including making 10 and decomposing a number leading to 10;

1.3E [Supporting] Explain strategies used to solve addition & subtraction problems up to 20 using spoken words, objects, pictorial models, and number sentences;

1.5F [Supporting] Determine the unknown whole number in an addition or subtraction equation when the unknown may be any one of the 3 or 4 terms in the equation;

Focus TEKS

1.5G [Readiness] Apply properties of operations to add & subtract two or three numbers

Ongoing TEKS

1.2(A-C)Number and Operations - The student applies mathematical process standards to represent and compare whole numbers, the relative position and magnitude of whole numbers, and relationships within the numeration system related to place value. The student is expected to: (A) recognize instantly the quantity of structured arrangements; (B) use concrete and pictorial models to compose and decompose numbers up to 120 in more than one way as so many hundreds, so many tens, and so many ones; (C) use objects, pictures, and expanded and standard forms to represent numbers up to 120.

1.3C [Supporting] Compose 10 with two or more addends with and without concrete objects;

1.3D [Supporting] Apply basic fact strategies to add & subtract within 20, including making 10 and decomposing a number leading to 10;

1.3E [Supporting] Explain strategies used to solve addition & subtraction problems up to 20 using spoken words, objects, pictorial models, and number sentences;

1.5B [Supporting] Skip count by twos, fives, and tens to determine the total number of objects up to 120 in a set;

Student Learning Targets:

• I will add using doubles plus 2.
• I will determine an unknown number.
• I will write a story problem.
• I will identify fact families.

Essential Questions:

• How can we solve the same problem in a different way?
• How do we show relationships between numbers?

Extra Information:

Adopted Textbook: Pearson - enVision Math

District Grading Policy

Texas Gateway Online Resource Center