Lesson 3-1: Students solve 3-digit addition problems using an expanded algorithm. Lesson 2-9: Students will solve word problems and check their answers for reasonableness. Lesson 2-8: Students will decide whether both sides of an equation are equal and they will determine the value of an unknown number in an equation. Lesson 2-7: Students will solve problems by estimating differences. Lesson 2-6: Students will solve problems by estimating sums. Lesson 2-5: Students will round two-digit and three-digit whole numbers to the nearest ten or hundred, by comparing to the number halfway between or by using place value. Lesson 2-4: Students will solve problems by subtracting with mental math. Lesson 2-3: Students solve problems by adding with mental math. Lesson 2-2: Students recognize situations when subtraction is used to solve a problem and write number sentences.

Lesson 2-1: Students use concrete materials and concepts of addition to model the Commutative, Associative, and Identity Properties of Addition. Topic 2- Number Sense: Addition and Subtraction Lesson 1-8: Students will make an organized list to represent information given in a problem. Lesson 1-7: Students will order 3-digit and 4-digit whole numbers. Lesson 1-6: Students will compare 3-digit and 4-digit whole numbers. Lesson 1-5: Students identify the pattern on a number line or graph scale, and calculate missing labels. Lesson 1-4: Students locate and compare whole numbers on a number line. Lesson 1-3: Students will read and write numbers in the ten and hundred thousands. Numbers: Expanded Form (Play Game Show Classic, click Maybe Later)- Įxpanded Form Quiz 2 (Play Game Show Classic, click Maybe Later)- Number Word Names !!!. Lesson 1-2: Students will name numbers in different ways.Įxpanded Form Quiz 2 (Play Game Show Classic, click Maybe Later). Lesson 1-1: Students will read and write 3-digit and 4-digit numbers. Additional websites are below for the Envisions Math

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