First graders practice double letter words. In this word study instructional activity, 1st graders are introduced to double letter words and pronounce them slowly. There is a helpful video with this instructional activity that explains...

Students determine when the letter s has been pointed out by the teacher and say its sound. In this phonics lesson, students learn the "s" sound and practice saying words beginning with the letter. 

In this printing practice worksheet, students follow the numbered arrows as they practice forming the lower case letters s, t, u, v, w, x, y, and z.

In this addition facts worksheet, learners fill in the graphic organizer to make addition facts that equal the number 3, 4, 5, and 6. Students complete 8 facts for the 4 worksheets.

First graders study word endings. In this word endings lesson, 1st graders study words that end in /s./ Students study various spelling changes for words that use an /s/ and say the words.

Learners use flashcards to memorize the Spanish words for numbers. In groups, they write and solve addition, subtraction, multiplication and division problems. They play another round of the game in which they can only give the problem...

Students investigate the use of colors in different areas of society. They make contrasts of its uses in places like home and school. Realia is used to determine the ability of students to recognize colors and how they relate to the...

Tenth graders answer a variety of problems based on similar triangle and learn about the rule of thumb. They will test the rule of thumb by estimating the distance to an object in the classroom.

Students increase their reading fluency through the use of various strategies. After reviewing chunking, decoding, and rereading, students complete an initial read of a novel text. Working with a partner, they read complete a timed...

Third graders improve their reading fluency through the use of various strategies. After reviewing cover ups and cross checking, 3rd graders complete an initial read of a text. Working with a partner, they complete a timed assessment of...

Students cut an index card to create three similar right triangles and explore the congruencies and proportions that exist. They investigate the properties of lines and concepts of congruency, similarity, tangency and symmetry of...

Students discover patterns and write conjectures relating to perimeters and polygons. Working in cooperative learning groups, they use manipulatives and graphic organizers to solve problems then answer a series of questions in which they...

Students say the /x/ sound, following teacher modeling and review words beginning with the sound. In this phonics lesson, students select the letter x each time it appears in a set of 12 letters and practice saying its sound, remaining...

Students repeat the letter x sound following teacher modeling. For this phonics lesson, students brainstorm words that begin with the /x/ sound and say the sound as the letter is pointed out among a set. Students continue recognition and...

[Free Registration/Login may be required to access all resource tools.] Use the SSS Similarity Theorem to determine if triangles are similar.

[Free Registration/Login may be required to access all resource tools.] This concept introduces students to the SSS Triangle Congruence Postulate and how to prove that two triangles are congruent given only information about their side...

[Free Registration/Login may be required to access all resource tools.] This concept teaches students to decide whether or not two triangles are similar using SSS Similarity.

Students will use their TI-84 Plus and Cabri Jr to investigate SSS triangle congruence.

[Free Registration/Login may be required to access all resource tools.] Prove two triangles are congruent with the Side-Side-Side shortcut.

Explore and understand two triangles that are similar.

Discover if two triangles are congruent it means that all corresponding angle pairs and all corresponding sides are congruent.

In this task, students must show that two triangles are congruent given a set of steps which produce a rigid transformation of the plane. Includes an experimental GeoGebra worksheet that instructors can use to demonstrate the task....

Given two triangles with some of their side measures, determine whether the triangles are similar or not. Students receive immediate feedback and have the opportunity to try questions repeatedly, watch a video or receive hints.

In this set of questions, students practice identifying side-side-side similarity among triangles. Includes hints.