CreativeMathLessons

Testing season is upon us! Even though the Triangle Sum Theorem is technically a topic for Geometry, this concept shows up on a variety of state and national assessments from 5th grade all the way up to 11th grade. These notes offer a simple rules for your students regardless of grade level. Each example is explained in two different ways. "The fancy way" that requires the use of a formula and highlights the strategies used on state wide assessments. The "mental math" explanation works bett

Looking for a new way to start off the year teaching Geometry? For a change of pace, rather than read the rules to the kids on the first day I decided to give them this activity instead. Supplies Needed: Notecards, paperclips, Starbursts, rulers, This is essentially a printable/editable packet with 6 different line segments that the students will measure using 6 different units of measurement. I chose 3 non-traditional units (notecard, paperclip, Starburst) and traditional units (Inches,