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• Math: Introducing the Make Ten Addition Fact Strategy and Revisiting Equality

Math: Introducing the Make Ten Addition Fact Strategy and Revisiting Equality

Suggested Time Frame: 13 Instructional Days

Focus TEKS

• 1.3D  Apply basic fact strategies to add and subtract within 20, including making 10 and decomposing a number leading to a 10 [Make Ten Addition Strategy]
• 1.2A  Recognize instantly the quantity of structured arrangements
• 1.3C compose 10 with two or more addends with and without concrete objects
• 1.5F  Determine the unknown whole number in an addition or subtraction equation when the unknown may be any one of the three or four terms in the equation
• 1.5G  Apply properties of operations to add and subtract two or three numbers

• 1.3B  Use objects and pictorial models to solve word problems involving joining, separating, and comparing sets within 20 and unknowns as any one of the terms in the problem such as 2 + 4 =___; 3 +___= 7; and 5 =___– 3
• 1.3F Generate and solve problem situations when given a number sentence involving addition or subtraction of numbers within 20

• 1.3E  Explain strategies used to solve addition and subtraction problems up to 20 using spoken words, objects, pictorial models, and number sentences
• 1.5D  Represent word problems involving addition and subtraction of whole numbers up to 20 using concrete and pictorial models and number sentences

Concept of Equality

• 1.5E  Understand that the equal sign represents a relationship where expressions on each side of the equal sign represent the same value(s)
• 1.5F  Determine the unknown whole number in an addition or subtraction equation when the unknown may be any one of the three or four terms in the equation
Numeracy TEKS

• 1.3D Apply basic fact strategies to add and subtract within 20, including making 10 and decomposing a number leading to a 10 [Count On and Use Doubles addition fact strategies in this unit]

Counting Patterns

• 1.5A Recite numbers forward and backward from any given number between 1 and 120
Spiral Review TEKS

Measuring Length and Time

• 1.7D  Describe a length to the nearest whole unit using a number and a unit
• 1.7A  Use [non-standard] measuring tools to measure the length of objects to reinforce the continuous nature of linear measurement
• 1.7B  Illustrate that the length of an object is the number of same-size units of length that, when laid end-to-end with no gaps or overlaps, reach from one end of the object to the other
• 1.7C  Measure the same object/distance with units of two different lengths and describe how and why the measurement differ
• 1.7E  Tell time to the hour and half hour using analog and digital clocks

Counting Collections

• 1.5A Recite numbers forward and backward from any given number between 1 and 120
• 1.5B  Skip count by twos, fives, and tens to determine the total number of objects up to 120 in a set