geometry

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Increasing Engagement

I remember being frustrated last year at about this time with my geometry students' performance on four questions on their circles test. The test was chronologically ordered in the way the material was presented so I was perplexed when they did poorly on the last section before review. It involved circles in the coordinate plane. Below are [...]

By | 2017-11-13T22:01:54+00:00 April 26th, 2017|Geometry|0 Comments

Sine, Cosine, and Tangent Ratios

Spring break brought out the creative juices. I spent time reworking guided notes sheets from last year into doodle notes this year. I like how they turned out. The Tangent Ratio Sine and Cosine Ratios I love it when I can start the class with a real world problem and help them arrive at a [...]

By | 2017-11-13T22:01:54+00:00 March 26th, 2017|Algebra II, Geometry|0 Comments

Transformations Unit

Translations As an informal assessment, I gave my students a Halloween Transformations worksheet to a) keep them off their phones after they finished their chapter tests and b) see how much they remember about or can do regarding transformations with minimal instruction. Most completed the assignment with no issues. Translations Doodle Notes can help students [...]

By | 2017-11-13T22:01:54+00:00 October 28th, 2016|Geometry|0 Comments

Chords, Secants and Tangents, Oh my!

When starting a new unit on circles, I'm cognizant of how important learning the vocabulary is. Most geometry students are only familiar with the center, radius and diameter of a circle. Following a trigonometry unit, the word tangent takes on  a new meaning. The following notes sheets and study guides should help address this. Lines & Segments that [...]

By | 2017-11-13T22:01:56+00:00 April 5th, 2016|Geometry|0 Comments

Angle Relationships

Sometimes the hardest part of Geometry is the foreign language in which it is delivered. Angles can be acute, obtuse, right, straight, complimentary, supplementary, adjacent, vertical, congruent, and can have common sides with one another or non-common sides. Add terms like opposite rays and make a distinction between congruence and having equal measures and you [...]

By | 2017-11-13T22:02:01+00:00 August 4th, 2015|Geometry|0 Comments

Area in a Coordinate Plane

Google Maps gives you a way to measure distances on a map. If you right click on the map and choose Measure Distance, the first point you click becomes the starting point. When you click a second point, Google Maps provides a scale with the distance between the points  shown in a box.    This scale can [...]

By | 2017-11-13T22:02:01+00:00 July 24th, 2015|Uncategorized|0 Comments

Points, Lines, and Planes

Terminology and Symbols The concepts of points, lines, planes, line segments, and rays are crucial for creating a great foundation on which to understand Geometry. The symbolism is particularly important. Geometry starts with three undefined terms - words with no formal definition but with a common agreement of what they are. A Point is a place [...]

By | 2017-11-13T22:02:01+00:00 July 13th, 2015|Geometry|0 Comments

Let’s Go Fly a Kite!

Build Your Own Kite.pdf contains a printable version of the graphic above for classroom use. How High is that Kite? can help start a discussion on flying kites. Similar Kites asks students to find the measurements for a smaller and a larger kite. In the video and photo from How High is that Kite? the kite's string was completely [...]

By | 2017-11-13T22:02:02+00:00 March 21st, 2015|Geometry|2 Comments