Public learning track
Understanding Equality and Properties of Operations
6 lessons
Goal
Understand the equal sign as a relationship between equal values and use properties of operations to add and subtract.
Featured Diagrams
Understanding the Equal Sign Means "Same Value"
6 lessons
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- Understanding the Equal Sign Means "Same Value"Up next
- True and False Number SentencesNot started yet
- Using Addition Facts to Solve SubtractionNot started yet
- Commutative Property: Order Doesn't Matter in AdditionNot started yet
- Associative Property: Grouping Numbers DifferentlyNot started yet
- Adding Three Numbers Using Make-a-TenNot started yet
Standards Covered
- 111.3(b)(5)(E)Texas Essential Knowledge and Skills (TEKS) · Math · 1st grade · Grade 1understand that the equal sign represents a relationship where expressions on each side of the equal sign represent the same value(s);
- 111.3(b)(1)(D)Texas Essential Knowledge and Skills (TEKS) · Math · 1st grade · Grade 1communicate mathematical ideas, reasoning, and their implications using multiple representations, including symbols, diagrams, graphs, and language as appropriate;
- 111.3(b)(1)(G)Texas Essential Knowledge and Skills (TEKS) · Math · 1st grade · Grade 1display, explain, and justify mathematical ideas and arguments using precise mathematical language in written or oral communication.
- 111.3(b)(5)(G)Texas Essential Knowledge and Skills (TEKS) · Math · 1st grade · Grade 1apply properties of operations to add and subtract two or three numbers.
- 111.3(b)(1)(B)Texas Essential Knowledge and Skills (TEKS) · Math · 1st grade · Grade 1use a problem-solving model that incorporates analyzing given information, formulating a plan or strategy, determining a solution, justifying the solution, and evaluating the problem-solving process and the reasonableness of the solution;
- 111.3(b)(1)(C)Texas Essential Knowledge and Skills (TEKS) · Math · 1st grade · Grade 1select tools, including real objects, manipulatives, paper and pencil, and technology as appropriate, and techniques, including mental math, estimation, and number sense as appropriate, to solve problems;
- 111.3(b)(1)(F)Texas Essential Knowledge and Skills (TEKS) · Math · 1st grade · Grade 1analyze mathematical relationships to connect and communicate mathematical ideas; and
1
5 lessons
Repeating and Growing Patterns
Identify, extend, and create repeating and growing patterns using shapes, colors, and numbers.
2
4 lessons
10 More and 10 Less Up to 120
Use place-value relationships to quickly find 10 more or 10 less than any number up to 120.
3
7 lessons
Word Problems With Unknowns in Any Position
Represent and solve addition and subtraction word problems within 20 where any number may be unknown.
4
6 lessons
Understanding Equality and Properties of Operations
Understand the equal sign as a relationship between equal values and use properties of operations to add and subtract.