LESSON PLAN: Tackling Trigonometric Graphs & Transformations

Tomorrow I will be "introducing" graphs of trigonometric functions to my IB Math Standard Level 1 class, so I've got Trig on the brain.  Yes, yes, they already learned it in Algebra 2/Trig Honors, but I find that it's best to build from the ground up when it comes to Trigonometry.  Sometimes students catch something … Continue reading LESSON PLAN: Tackling Trigonometric Graphs & Transformations

Graphing Functions: A Table Approach

Algebra 1:  Graphing's a cinch!  (For us... maybe not so much for our students) We teach linear and quadratic parent functions... and often fail at inverse variation We begin to help them understand the usefulness of finding the vertex and substituting values for x. We show the connection between evaluating and the graphing calculator table … Continue reading Graphing Functions: A Table Approach

Calculating Slope From 2 Points *with tables*

Finding the slope seems to trip students up every year, even though we work step-by-step through the different variations.  Students seem to master each individual piece (*EXCEPT maybe the slope formula... hence, this blog post!  We'll get there...).  We always have great conversations about types of slopes, making connections between all the different representations: special … Continue reading Calculating Slope From 2 Points *with tables*

Prime Factors *with cakes and ladders*

Prime factorization with factor trees (actually, using factor trees in general), in my opinion and experience, is the WORST!  Organized kids can usually keep track of what they need to, but many struggling students lose "branches" of their trees and forget that they still need to factor composite numbers like 6.  If a kid learned … Continue reading Prime Factors *with cakes and ladders*