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Create the classroom connections that matter

Comprehensive K–12 curriculum to engage, challenge, and inspire your students

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English Language Arts

Kindergarten – 12th Grade

Student reading aloud to class.


3rd Grade – Algebra 2

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Two core values impact every decision we make:

We believe in students.

When they receive the support they need, all students can master grade-level content, solve critical problems, and discuss complex ideas.

We trust teachers.

Teachers are in the best position to see what their students need, so we aim to provide them with the right balance of flexibility and support in our resources.

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Provide your teachers and students with engaging, highly-rated curriculum.

Recently on the Fishtank Blog

Are You with Me? How to Effectively Check for Student Understanding

To make sure students walk away from lessons with a deep understanding of new content, you need to consistently check for student understanding. Explore strategies to help you effectively and efficiently check for student understanding in every lesson. 

What People Are Saying


I have recommended it to many educators. I feel the program matches current research on building understanding. It is easily adaptable. It encourages students to think about all possible answers and honor the thinking of others. The program is about the thinking, not the one answer.

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