I use this page of scaffolded notes with practice problems after introducing exponential functions and how to write both growth and decay functions from a word problem. Students use the notes to practice their new knowledge on the problems at the bottom of the page. I then make sure the students have the practice problems correct, properly label everything, and add their own note. I have them refer to this page when continuing their practice and extension with this concept. I have also used this as an entrance or exit ticket to check initial understanding. I've also enlarged the notes portion and used it as a reference poster during the unit.
COMMON CORE STANDARDS:
Construct linear and exponential functions, including arithmetic and geometric sequences, given a graph, a description of a relationship, or two input-output pairs
Create equations and inequalities in one variable and use them to solve problems. Include equations arising from linear and quadratic functions, and simple rational and exponential functions.
Use the properties of exponents to interpret expressions for exponential functions. For example, identify percent rate of change in functions such as y = (1.02)ᵗ, y = (0.97)ᵗ, y = (1.01)12ᵗ, y = (1.2)ᵗ/10, and classify them as representing exponential growth or decay.