Slope Introduction

Lesson Prep

Lesson Details

• Duration: 50 minutes

• Learning Goal: Introduce slope by having students explore and develop methods using a Desmos activity.

Prework

• Make sure you have Chromebooks or some other class set of technology

• Watch the following videos to learn more about our retake policy and how we go over quizzes

  • Retake Policy

  • Going Over Quizzes (embedded above)

Classwork

• Put the Point on the Line (Desmos)

• Go over Concept Quiz

  • Students complete this analysis handout in order to prepare for a retake.

Standards

Common Core

• HSF.IF.B.6 – Calculate and interpret the average rate of change of a function (presented symbolically or as a table) over a specified interval. Estimate the rate of change from a graph.

• 8.F.B.4 – Construct a function to model a linear relationship between two quantities. Determine the rate of change and initial value of the function from a description of a relationship or from two (x, y) values, including reading these from a table or from a graph. Interpret the rate of change and initial value of a linear function in terms of the situation it models, and in terms of its graph or a table of values.

TEKS

• A.3(A) – determine the slope of a line given a table of values, a graph, two points on the line, and an equation written in various forms, including y = mx + b, Ax + By = C, and y – y1 = m(x – x1)

• A.3(B) – calculate the rate of change of a linear function represented tabularly, graphically, or algebraically in context of mathematical and real-world problems