WRITING SIMPLE EXPRESSIONS GOAL: I can write and interpret numerical expressions and compare expressions using a visual model.

Agenda: ◦ Multiply by multiples of 10 ◦ Estimate Products ◦ Word Problem of the Day! ◦ Decompose a factor: Distributive Property ◦ Multiplying with the Standard Algorithm ◦ Small Groups ◦ Exit Ticket

Multiply by multiples of 10 ◦ 21 x 40 ◦ 213 x 30 ◦ 4,213 x 20

Estimate the Products ◦ 421 x 18 ≈ _____ x _____ = _______ ◦ 323 x 21 ≈ _____ x _____ = _______ ◦ 1,950 x 42 ≈ ______ x ______ = _______ ◦ 2,480 x 27 ≈ ______ x ______ = _______

Decompose a Factor: Distributive Property ◦ 9 x 3 = _______ ◦ (5 x 3) + (____ x 3) *9 is also the same as 5 and what number? ◦ 7 x 4 = _______ ◦ (5 x 4) + (____x 4) = ______ ◦ 8 x 2 ◦ 9 x 6

Word Problem! ◦ Robin is 11 years old. Her mother, Gwen, is 2 years more than 3 times Robin’s age. How old is Gwen?

Multiplying Multi-digit numbers with the standard algorithm ◦ How can we write this expression in standard form? ◦ 3 times the sum of 26 and

6 times the difference between 60 and 51 Where should we put parenthesis? 60-51

The sum of 2 twelves and 4 threes

Numerical Expressions to word form ◦ Thick about how we can take these expressions to word form based off the problems we had previously! ◦ 8 x (43 – 13) ◦ (16 + 9) x 4 ◦ (20 x 3) + (5 x 3)

Small group Problem Set ◦ I will be working with small groups to complete the problem set. ◦ If you are not working with me at some point, you are to work on the problem set independently. ◦ Each of you will get a chance to work with me! Please have patience. ◦ This should take us about 30 minutes.

What was our goal? ◦ I can write and interpret numerical expressions and compare expressions using a visual model.

Mathematical Practices ◦ MP 1 Make sense of problems and persevere in solving them. ◦ MP 2 Reason abstractly and quantitatively. ◦ MP 3 Construct viable arguments and critique the reasoning of others. ◦ MP 4 Model with Mathematics ◦ MP 5 Use appropriate tools strategically ◦ MP 6 Attend to precision ◦ MP 7 Look for and make use of structure ◦ MP 8 Look for and make sense of regularity in repeated reasoning

Exit Ticket ◦ You are working on this independently. I should not hear talking! ◦ This is a reflection on what you know from today’s lesson, so do your best. ◦ This IS for a grade