Help My Child Learn Math First Grade Parent Edition - Book 4

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This comprehensive E-Text is part of a multi-book series to assist parents in helping their child master mathematics in First Grade.

BOOK 4 LESSONS 31-40
Lesson 31
SUBTRACTING WITH NUMBERS
Objective: Using number and symbol cards, student will learn to make subtraction sentences. Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false.
Lesson 32
SUBTRACTING 0
Objective: Using index cards and counters, the student will learn how to create subtraction sentences with
0. Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false.
Lesson 33
SUBTRACTING 1 OR 2 WITH A NUMBER LINE
Objective: Relate counting to addition and subtraction . Student will learn how to subtract 1 or 2 using a number line. Understand the meaning of the equal sign, and determine if equations involving addition and subtraction are true or false.

Lesson 34
DOUBLES IN SUBTRACTION
Objective: Use addition and subtraction within 20 to solve word problems involving situations of adding to,taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem. Student will learn about addition through pairing numbers to make the number 5. Using doubles addition facts, the student will understand how to solve doubles subtraction problems.

Lesson 35
RELATED ADDITION AND SUBTRACTION PROBLEMS
Objective: Student is to show an understanding of all the addition facts for numbers 0 through 12 and solve the related subtraction problems fluently. Compute sums and differences using number facts and strategies, but no formal algorithm. Understand subtraction as an unknown-addend problem.

Lesson 36
FACT FAMILIES
Objective: Apply properties of operations as strategies to add and subtract. Examples: if8+3= 11 is known, then3+8= 11 is known . To add2+6+ 4, the second numbers can be added to make a ten, so 2 + 6 + 4 = 2 + 10 = 12 . Student explore fact families and learn how they relate to addition and subtraction problems. Understand subtraction as an unknown-addend problem.

Lesson 37
MORE FACT FAMILIES
Objective: Apply properties of operations as strategies to add and subtract. Examples: if8+3= 11 is known, then3+8= 11 is known . To add2+6+ 4, the second numbers can be added to make a ten, so 2 + 6 + 4 = 2 + 10 = 12 . Student will learn how to apply current knowledge of fact families to solve simple open sentences for addition and subtraction, such as + 2 = 7 and 10 - = 6. Determine the unknown whole number in an addition or subtraction equation relating three whole numbers. For example, determine the unknown number that makes the equation true in each of the equations 8 + ? = 11, 5 = _ - 3, 6 + 6 = _.

Lesson 38
USING ADDITION TO HELP YOU SUBTRACT
Objective: Use addition and subtraction within 20 to solve word problems involving situations of adding to, taking from, putting together, taking apart, and comparing, with unknowns in all positions, e.g., by using objects, drawings, and equations with a symbol for the unknown number to represent the problem. Student will learn about addition through pairing numbers to make the number 5. Understand subtraction as an unknown-addend problem.