This bundle includes 4 activities covering functions - a sorting activity for functions vs. non-functions, a sorting activity for identifying functions in different forms, a function matching activity for word problems and function task cards. Each is described in more detail below. For a bigger discount on more functions resources, see Functions BUNDLE
Included in this bundle:
Function or Not? Introduction to Functions Sorting Activity (optional QR codes)
What makes a table, graph, equation, mapping or set of coordinate pairs a function? Students work together or independently on this introductory activity to sort relations into the correct category of "function" or "not a function". This download also includes a "Why?" sheet that asks students to explain their reasoning behind their decisions. Alternate answer sheets with QR codes are included if you would like students to check their own work. An answer key is also included.
Function Sorting Activity: Identifying Solutions in Different Forms
Functions have exactly 1 output (y) for every input (x). Solutions to functions come in different forms. This activity helps students identify function solutions when presented in different ways. Students work in pairs to cut, sort then paste different representations of functions (tables, graphs, equations, scatter plots) into 3 categories: Solution (2, 1), Solution (2, 2), Solution 2, 3). The preview is a completed activity printed on bright paper.
Function Matching Activity: Word Problems (linear and nonlinear)
This activity asks students to match linear and nonlinear graphs to short stories that describe the graphs. Each story describes a walk between home and school at a mixture of constant and nonconstant rates. Students will need to think about the shapes of graphs when speed is increasing, decreasing or staying the same as well as the slopes of the graphs when moving towards or away from the origin. There are 18 total graphs and stories as well as one extra credit problem asking students to write their own story about a graph. The download includes a poster with keywords for linear and nonlinear graphs, a student response sheet and a complete answer key.
Function Task Cards: Identifying Functions in Different Forms (station activity)
What makes a function? Students work either independently or together to identify functions represented in: tables, graphs, coordinate pairs, equations, scatter plots, and in verbal word problems (8.F.A.1), to identify which of two functions has a greater rate of change (8.F.A.2), and if a function is linear or nonlinear (8.F.A.3). You may choose to have your students simply identify the functions on the 16 task cards or also explain answers. The answer sheet provides space for both. An answer key is also included.
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