eBook
Savvas Learning

Saxon Math 5/4

For Teachers 3rd - 5th Standards
You'll never have to search for another worksheet again after downloading this extensive collection of Saxon math materials. With over 600 pages of example problems and skills practice exercises, this is a must-have resource...
Worksheet
Curated OER

Problems!!!

For Students 5th - 8th
In this word problems instructional activity, students read word problems about one person telling the truth and one telling a lie and they figure out which is which. Students complete 4 problems.
Lesson Plan
Curated OER

Triangle Conjectures

For Teachers 10th
Tenth graders investigate the theorems of ASA, AAS, AAA and ASA. In this geometry lesson, 10th graders discuss the theorems of triangles and how it is used to solve for missing sides or angles. They review how two angles are formed by...
Lesson Plan
Curated OER

Picking Pythagoras

For Teachers 6th - 9th
Students discover that side measurement is used in determining angle classification of a triangle. By squaring sides, they predict whether triangles be right, obtuse, or acute. They prove the Pythagorean Theorem and use it to solve...
Lesson Plan
Curated OER

Triangle Sum Theorem

For Teachers 10th
Tenth graders investigate the theorems of angles and lines to prove triagle sum theorem. In this geometry lesson, 10th graders discuss the theorems of triangles and how it is used to solve for missing sides or angles. They review how two...
Interactive
Curated OER

Similar Figures

For Students 7th - 10th
In this similar figures worksheet, students identify the meaning of similar, corresponding sides, and congruent.  They use proportions to find the length of a missing side.  Students dilate given figures according to a scale...
Lesson Plan
Curated OER

Triangles Congruency Theorems

For Teachers 10th
Tenth graders investigate the theorems of ASA, AAS, AAA and ASA. In this geometry instructional activity, 10th graders discuss the theorems of triangles and how it is used to solve for missing sides or angles. They review how two angles...
Lesson Plan
Curated OER

Algebra 2 & Trigonometry Practice: Law of Sines

For Teachers 9th - 12th
In this law of sines worksheet, high schoolers solve 9 multiple choice and short answer problems.  Students use the law of sines to missing side lengths and angles of triangles.
Lesson Plan
Curated OER

Cabri Jr. Perpendicular Bisector of a Chord

For Teachers 9th - 12th Standards
Your learners will construct the perpendicular bisector of a chord. They use Cabri Jr. to construct a circle and a perpendicular bisector of a chord. They then measure lengths of the chords and perpendicular bisectors. Learners use...
Worksheet
Curated OER

The Law of Sines

For Students 9th - 12th
In this law of sines worksheet, students use the law of sines to find the missing measurement in a triangle. They determine the value of angles and the lengths of triangles. Students compute the area of triangles. This four-page...
Worksheet
Curated OER

Similar Figures

For Students 10th
In this geometry worksheet students explore similar polygons and determine measure of missing sides and angles. Students use indirect measurement with similar triangles and determine the area and volume of similar figures. The seven...
Lesson Plan
EngageNY

Applying the Laws of Sines and Cosines

For Students 9th - 10th Standards
Breaking the law in math doesn't get you jail time, but it does get you a wrong answer! After developing the Law of Sines and Cosines in lesson 33 of 36, the resource asks learners to apply the laws to different situations. Pupils must...
Lesson Plan
Messenger Education

Sensing the Invisible: The Herschel Experiment

For Students 5th - 8th Standards
The electromagnetic spectrum includes everything from very powerful gamma rays (which are used to treat cancer) to much weaker radio waves (which include microwaves). Through a hands-on activity, scholars explore the temperature...
Unit Plan
Mathematics Vision Project

Module 6: Congruence, Construction, and Proof

For Teachers 8th - 10th Standards
Trace the links between a variety of math concepts in this far-reaching unit. Ideas that seem very different on the outset (like the distance formula and rigid transformations) come together in very natural and logical ways. This...
Assessment
Bowland

German or English?

For Teachers 6th - 8th
Sprechen sie Deutsch? Future cryptographers must decide whether an unknown text is written in English or in German. They use provided pie charts about the frequency of words in the English and German languages to help make their decisions.
Unit Plan
Mathematics Vision Project

Module 5: Modeling with Geometry

For Students 9th - 12th Standards
Solids come in many shapes and sizes. Using geometry, scholars create two-dimensional cross-sections of various three-dimensional objects. They develop the lesson further by finding the volume of solids. The module then shifts...
Lesson Plan
Curated OER

Balancing Act

For Teachers 2nd
Second graders identify the attributes of various shapes and estimate the weight of the objects. In this geometry lesson, 2nd graders identify the attributes of concrete objects and use a pan balance to weight them.
Unit Plan
Khan Academy

Khan Academy: Create Equations to Solve for Missing Angles

For Students 6th - 8th Standards
Use understanding of vertical, complementary, and supplementary angles to set up an appropriate equation to solve for a missing angle measure. Students receive immediate feedback and have the opportunity to try questions repeatedly,...
Unknown Type
Khan Academy

Khan Academy: Finding Missing Angles

For Students 7th Standards
Practice problems finding missing angles.
Unit Plan
Khan Academy

Khan Academy: Finding Angle Measures Using Triangles

For Students 7th - 8th Standards
Use your knowledge of angles to find missing angle measures in various complex situations. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video, or receive hints.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Angle Measures in Given Quadrilaterals

For Students 8th
[Free Registration/Login may be required to access all resource tools.] Finding and understanding the angle measures of quadrilaterals.
Unit Plan
Khan Academy

Khan Academy: Finding Angle Measures Between Intersecting Lines

For Students 7th - 8th
Use your knowledge about angles to find missing angle measures in various situations. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Angle Measures in Given Quadrilaterals

For Students 6th
[Free Registration/Login may be required to access all resource tools.] Find the degree measure of unknown angles in given quadrilaterals.
Unit Plan
CK-12 Foundation

Ck 12: Geometry: Supplementary and Complementary Angle Pairs

For Students 7th
[Free Registration/Login may be required to access all resource tools.] Use reasoning to figure out the measures of missing angle measures