Functions: Math Unit 4, Grade 8 (Letters & Devotion)

Description

Functions is Unit 4 of Pre-Algebra: Foundations for Algebra I (Grade 8), the Letters & Devotion Math course, complete in one printable PDF: 8 lessons, the unit check-up and the answer key, 50 pages.

• The definition of function as one output per input
• The vertical line test as a graphical criterion for the function definition
• Equivalence of a function across table and graph representations
• Rate of change as a constant difference indicating a linear function
• Rate of change and initial value as representation-independent quantities usable for comparison
• Construction of a function rule from an unstructured verbal description, including a non-constant rate case
• The distinction between co-variation and a valid function rule
• Linear versus nonlinear classification using rate-of-change evidence

Every lesson is written for a parent with no teaching background: it opens with a short script to read aloud, names the specific wrong idea a student is likely to reach for and how to correct it, and closes with a practice sheet you may copy for your household. Scripture references are King James Version throughout. Black-and-white, 8.5 x 11 in. The whole year of this course is also in this store as a single book.

AI note: The written content of this resource was drafted with AI tools, then reviewed and edited by the author.