Tammy Dolan

This activity is to be used as a discovery-based introduction to similar triangle theorems. Students will each be assigned a number 1, 2, or 3 (I use cards for this or counting off). They will get into groups by number and work on their station number. Students will follow a set of directions that have them construct a similar triangle either using two angles, a side-angle-side, or three sides. This will help students conceptualize why similar triangles are created from just 2 or 3 measurements

Students can make a fun foldable with an example and work space to create basic geometric constructions using a straight edge and compass. I had students glue the foldable into their Interactive Notebook!

How does scale factor change perimeter and area? I had students graph two triangles with a scale factor of dilation of 2. Students looked to see how the area and perimeter are affected when a scale factor is applied. They then make conjectures about the change in perimeter and area to apply to additional examples.

Students practice vocabulary by playing a fun game of truth or dare. Print out the cards on card stock, fold them and glue the inside to make the playing cards. I made one set for each group in my class. Have fun with the vocabulary! Editable Word Doc Vertical Angles Supplementary Complementary Adjacent Linear Pair Angle Bisector

This is a word document that can be altered for your area. I had students spend a period in the computer lab researching different local population densities. Students research the town area and population and then calculate the density. They had a lot of fun finding out about local areas! There area a few follow-up density questions on the second page from the Galileo Test Bank.

Have students cut out the figures, definitions and names to math up the vocabulary! Great for a review on the vocab.

This is a fun homework packet to accompany transformations on the coordinate plane unit. Students graph their own picture and then apply various transformations to their original picture. Broken down on a day-by-day basis. Translation, Reflection, Rotation and Dilation. Gives a break from traditional textbook style homework problems! Directions ask students to add color to their graphs and glue them all on a larger paper. My students really liked this! Their projects came out great and even my

Volume scavenger hunt includes prisms, cylinders, prisms and cones. Hang the question cards around the room. I then gave each pair of students a starting card (this way they all start in different places). They solved their question and then found their answer around the room. The new question is next to the answer they just got. I had envelopes under every question with a bunch of copies of the new questions. Students took a copy, glued it into their Interactive NB and then solved the questio

This project is a fun hands-on activity that leads students through creating a template for and making an Icosahedron. Students will use what they know about constructing an inscribed equilateral triangle to make their 3-d object. I used this after my geometric constructions unit.

I put several copies of each figure on tables around the room. Students visited the different stations, traced the figure onto their paper and then measured the angle using a protractor.

After students have explored properties of parallelograms, I had them investigate a square, rhombus, isosceles trapezoid and kite. Students did a Jigsaw in this activity. I gave each student a color card (one of four colors). They grouped with their like colors and investigated an assigned shape. They then regroup (one card of each color) and share their discoveries with their groups. The members of the group fill in the other 3 sections of the handout.