Notes about Grade 9 Math Curriculum Release and Implementation

The Grades 6-12 Curriculum Release and Implementation session today was divided into groups for different grade levels. The participants in the Grade 9 Math group began by exploring the lessons in Topic A, where students explore non linear situations. Participants watched and analyzed a YouTube video of “Professor Splash” that introduces students to quadratic functions.

The lessons in Topic B challenge students to answer the questions: “Why are the commutative, associative, and distributive properties so important? What is the role they play in writing equivalent expressions?”

Participants studied lesson 5, which includes reading and decoding text. During this lesson, math teachers will need to use instructional strategies to help with decoding the text. These instructional strategies include the students reading the text alone, paraphrasing it with a partner and then the teacher asking the students specific questions that require them to pull out important pieces of information from the text with a large group and then individual groups.

Participants reviewed lesson 6, which includes a multiplication problem involving polynomials that is solved by using an array geometrically. Students shouldn’t lose their sense of number once the variables appear. The arrays that are introduced in multiplication in third grade play a big role in using an array of polynomials geometrically to solve multiplication problems. The standards for mathematical practice are a large part of the math curriculum at this level.

In reviewing lesson 7, participants examined what it means to be algebraically equivalent. In this lesson, the curriculum asks students to accept the four properties of arithmetic as truths and what that allows them to do. The lesson builds on coherency and introduces the concept of proofs and how a mathematical expression can be manipulated to look different but mean the same thing.

Please find the professional development materials from Grades 6-12 math here.


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