Linear Relationships as Rules, Graphs, and Stories: Math Unit 1, Grade 9 (Letters & Devotion)

Description

Linear Relationships as Rules, Graphs, and Stories is Unit 1 of Algebra I (Grade 9), the Letters & Devotion Math course, complete in one printable PDF: 10 lessons, the unit check-up and the answer key, 78 pages.

• Starting value and constant rate of change in a verbal linear context
• Slope as a computed ratio of vertical change to horizontal change
• Invariance of slope across point pairs on one line
• Distinguishing linear structure from graph/table appearance alone
• Slope-intercept equation construction from varied input formats
• Function notation f(x) as input-output pairing tied to context
• Domain and range as context-imposed restrictions on an algebraic relationship
• Equality of two linear expressions as the point of agreement between two contexts
• Appropriateness of a linear model and selection among representations for a decision
• Vocabulary: slope, x-intercept, y-intercept

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.