Common Core Math for Teachers
Walk into class ready to teach any standard.
Lesson slides and exercises for every Common Core Math standard — organized by standard, not by chapter. Free to use, no account required.
Choose your grade:
- 53
- Standards covered
- 66
- Lesson slide decks
- 55
- Exercise sets
- 100%
- Grades 6–7 coverage
Teaching a single standard shouldn't require a research project
You need to teach 6.EE.B.7 tomorrow. Here's what that looks like today:
Textbooks are organized by chapter, not standard
Finding slides for tomorrow's standard means cross-referencing alignment guides — and the pages can't be projected.
Khan Academy covers topics, not standards
There's no way to navigate to 6.EE.B.7. The content is video-only — a learning tool, not a teaching tool.
Teachers Pay Teachers is a grab bag
Inconsistent quality, incomplete coverage, no guarantee you'll find what you need. Searching takes longer than building it yourself.
So you build it from scratch
Evenings spent making slides, writing problems, finding worked examples. Unsustainable — and the quality of instruction depends on each teacher's capacity to create materials.
How it works
Find the standard
Search by topic or browse the hierarchy — Grade → Domain → Cluster → Standard. Every standard has its own page.
Open the lesson slides
Slides follow a full lesson arc: concept introduction, worked examples, guided practice. Project them and teach.
Assign the exercises
Each standard has a matching exercise set with worked solutions. Share the link — students practice, you see the results.
What makes this different
| K12worX | Khan Academy | Textbooks | |
|---|---|---|---|
| Organized by standard | Every standard has its own page | By topic — no standard navigation | By chapter — standards in appendix |
| A teaching tool | Slides you can project and teach from | Video only — can't teach a class from it | Sometimes included, behind paywall |
| Exercises by standard | 1:1 mapping, worked solutions | Mapped to skills, not standards | Bundled by chapter |
| Access | Free, no account, web-based | Free but requires account | Institutional purchase |
Every slide deck is structured for teaching — concept introduction, worked examples, guided practice — not scraped from worksheets or auto-generated. Each exercise set is aligned to one standard and includes worked solutions, so you can assign it with confidence.
Works for substitute teachers too
The lesson plan says "teach 7.G.B.4." The substitute has never taught this standard before. With K12worX, they navigate to the standard and have a complete lesson — slides that follow a full arc, exercises for practice. Students get real instruction, not a worksheet and a movie.
Coming soon: assignment tracking and grading
All content stays free. These premium features add classroom workflow tools — assign, track, and grade, all organized by standard.
Assignment creation
Create assignments tied to specific standards, set due dates, and share via link or class code.
Class roster
Organize students into classes. Assign work to a class, track progress per student.
Exercise grading
Students submit answers and get instant feedback. You see per-student, per-problem results without collecting paper.
Standards coverage
See which standards you've taught and assigned across the year — identify gaps before assessments.
Start with the standard you're teaching tomorrow
Grades 6 and 7 — every standard covered. Free, no account required.
Choose your grade:
Ready to create classes and assign exercises? Create a free account →