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!

This is a full year of short CFA assessments. They are graded on a 1-4 scaled. I have students do them after we learn a new topic. The CFAs are mapped to the geometry standards for Common Core. Each CFA has at least two versions for retake purposes and a lot of them have 3 versions. I allow students to retake them to ensure they are learning the standard. They are on quarter or half sheets to save paper. Every CFA document is in Word so it can be edited for your needs. Here are the topics of the

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 fun way to help students review for the PARCC test. I copied the questions from the PARCC practice test (18 different questions). I printed 5 sets off on different colored card stock. The students will be in 5 groups and work on answering the questions. I made a ActivInspire flipchart that has the same 5 color cards to be dragged into that group's column as they complete each question. I reward the class with 20 seconds of free time for every question the groups get right as a whole cl

This lesson contains 7 unique station activities for practicing volume. There is a student worksheet that goes along with all of the stations. There's a second version of the student worksheet that has missing information for students to fill in as they work through the station (this holds them accountable for moving from station to station and not just working on problems with their packet). All items are a word document in case you would like to make any adjustments. Preparation: Print one se

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.

Students use spaghetti noodles to explore the Triangle Inequality Theorem and the Triangle Angle-Side Relationship Theorem. Each group needs 4 sticks of spaghetti that they cut to different lengths using a ruler and scissors. This is a Flipchart file also converted to PDF for a slide show.

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 is a booklet that students use to investigate and fill in angle properties for parallel lines. I made a set of flashcards to go along with this booklet that had all of the terms and a picture on the back. Students used the picture/term flashcards to work with their groups and fill in their booklets. Students made a pocket for their flashcards and glued in their booklet into their Interactive Notebook. Visit my store for the flashcards!

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.

Terms include Point, Line, Plane, Collinear, Noncollinear, Coplanar, Noncoplanar, Undefined Term I had students match the words in their groups based off of context in the definition Students then add them to their student recording sheet and come up with one example and nonexample as a group.

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.

This file goes along with the Parallel Line Investigation Booklet. Works with ActivInspire and I THINK can be imported into SmartBoard applications.