By Clay Shumate · Updated October 2026
Short answer: For high school STEM projects, the best rubric “set” is usually a combination: PBLWorks’ free research-based 6–12 rubrics for collaboration, critical thinking, and communication, plus content criteria you build from the NGSS science and engineering practices and the free NGSS evidence statements for the performance expectations you’re teaching. If your school wants a ready-made paid platform, Defined Learning includes rubrics with every performance task. TeachEngineering offers 2,200+ free NGSS-aligned engineering lessons and activities, and Teachers Pay Teachers has seller-made STEM rubrics you’ll need to vet.
STEM projects need criteria a general PBL rubric doesn’t have: Did students define the problem with real constraints? Did they test, collect data, and redesign? Does the claim match the evidence? This guide covers where to get STEM-ready rubrics, what criteria they should include, and gives you a sample table you can adapt. For general grades 6–12 rubrics (presentations, discussions, any subject), see our separate guide to PBL rubric bundles for middle and high school.
What should a high school STEM PBL rubric measure?
A STEM PBL rubric should score the engineering design process, the science and engineering practices, the quality of data and evidence, and each student’s contribution to the team.
The NGSS Appendix F lists eight science and engineering practices, and they make a natural backbone for STEM criteria:
- Asking questions (for science) and defining problems (for engineering)
- Developing and using models
- Planning and carrying out investigations
- Analyzing and interpreting data
- Using mathematics and computational thinking
- Constructing explanations (for science) and designing solutions (for engineering)
- Engaging in argument from evidence
- Obtaining, evaluating, and communicating information
You don’t need all eight in one rubric. Pick the three or four the project actually asks students to do. A bridge-design project leans on defining problems, models, and designing solutions; a water-quality project leans on investigations, data, and argument.
For engineering, the high school NGSS engineering design standards give you ready-made criteria. HS-ETS1 asks students to analyze a major global challenge and specify criteria and constraints (HS-ETS1-1), break a complex problem into smaller solvable parts (HS-ETS1-2), evaluate solutions by prioritizing criteria and weighing tradeoffs (HS-ETS1-3), and use a computer simulation to model a solution’s impact (HS-ETS1-4).
Where can I get PBL rubrics for high school STEM?
Free sources cover most of what you need; paid platforms mainly save you the work of writing project-specific rows.
| Source | Cost | What it gives you | STEM-specific? | Watch for |
|---|---|---|---|---|
| PBLWorks success skills rubrics | Free account | 6–12 rubrics for critical thinking, collaboration, communication, creativity, self-direction | No, skills only | Add your own content rows |
| NGSS evidence statements | Free | Observable components of each performance expectation | Yes | Not formatted as rubrics |
| NGSS EQuIP rubric | Free PDF | Criteria for judging lesson and unit design | Yes | Evaluates units, not student work |
| TeachEngineering | Free | 2,200+ NGSS-aligned K–12 engineering lessons and activities | Yes | Assessment sections vary by activity |
| Defined Learning | Custom quote | Performance tasks with built-in rubrics, exemplars, student work | Includes math, science, CTE | School or district purchase |
| Teachers Pay Teachers | Free to paid | Seller-made STEM and engineering rubrics | Varies | Quality and alignment vary by seller |
Do PBLWorks rubrics work for STEM classes?
Yes, for the skills half of the grade, but they deliberately leave content out, so you’ll pair them with science or engineering rows.
PBLWorks’ research-based success skills rubrics were developed with the National Center for the Improvement of Educational Assessment and come in a 6–12 version for critical thinking, collaboration, self-directed learning, complex communication, and creativity. PBLWorks says they can be modified with attribution. Its guidance on its 4 Cs rubrics recommends adding content rows or a separate content rubric, because the skills rubrics aren’t meant to assess subject knowledge. For STEM, that split is useful: collaboration and communication come from PBLWorks, and the engineering and science rows come from NGSS.
PBLWorks’ Project Design Rubric is also worth running your STEM project through before launch. It checks the project itself against the Gold Standard design elements.
How do I use NGSS tools to build STEM rubric criteria?
Use the NGSS evidence statements to write student-work criteria, and use the EQuIP rubric to check that the unit itself is well designed.
The NGSS site publishes evidence statements that describe observable, measurable components of each performance expectation. For example, there’s a downloadable evidence statement for HS-ETS1-1. These are the closest thing to an official source for rubric rows: pick the components your project targets and turn each into a “meets” descriptor.
The EQuIP Rubric for Science, Version 3.0 (September 2016) is a different tool. It evaluates lessons and units, not students, in three categories: NGSS 3D Design, NGSS Instructional Supports, and Monitoring NGSS Student Progress. According to NSTA, it was developed by Achieve and NSTA. Use it to check whether a purchased or self-built STEM unit really asks students to use the practices, before you build a student rubric around it.
Is TeachEngineering a good free source for STEM projects?
Yes. It’s free, NGSS-aligned, and searchable by standard, though you may need to add your own rubric to some activities.
TeachEngineering describes itself as free, standards-aligned engineering curriculum for K–12, with 2,200+ peer-reviewed lessons and activities aligned to NGSS and state standards, and lets you search by topic, grade, or standard. It’s run by the University of Colorado Boulder with partner institutions and funded by the National Science Foundation. Each activity lists its standards; for instance, an introductory engineering design cycle activity lists MS-ETS1-4 and HS-ETS1-6(MA). That activity’s Assessment section was empty when we checked, which is a good reminder to look before you assume a rubric is included.
Should I buy a STEM rubric set from Defined Learning or TPT?
Defined Learning makes sense if your school wants a whole task library with rubrics; TPT makes sense for one specific project, as long as you vet it.
Defined Learning says every performance task includes built-in rubrics, exemplars, and student work samples, and its library covers math and science alongside CTE and other subjects. Its FAQ says pricing is a custom quote and it’s sold through school and district partnerships, so it’s not an individual teacher purchase.
On Teachers Pay Teachers, filter to high school (9th–12th) and science or math, then check every preview for three things: rows tied to specific practices or standards, a separate collaboration score per student, and an editable file. A STEM rubric that grades “creativity” and “neatness” but never mentions data or testing isn’t a STEM rubric.
What does a sample STEM PBL rubric look like?
Here’s a starting set of criteria you can adapt; each row maps to an NGSS practice or engineering standard so it’s easy to defend.
| Criterion | Maps to | Meets standard looks like | Scored |
|---|---|---|---|
| Problem definition | Practice 1; HS-ETS1-1 | States the problem, measurable criteria, and real constraints (cost, materials, time, safety) | Group, with individual explanation |
| Design and modeling | Practices 2 and 6; HS-ETS1-2 | Breaks the problem into parts and uses a sketch, model, or simulation to plan a solution | Group |
| Testing and data | Practices 3, 4, and 5 | Runs fair tests, records data in a usable table or graph, and uses math to compare trials | Group, with individual data notebook |
| Iteration and tradeoffs | HS-ETS1-3 | Redesigns based on test results and explains which criteria were prioritized and why | Individual |
| Evidence-based claim | Practice 7 | Makes a claim about the best design and supports it with the team’s own data | Individual |
| Communication | Practice 8 | Explains the design, data, and limits clearly to a real or authentic audience | Individual |
| Collaboration | PBLWorks 6–12 collaboration rubric | Contributes to the team’s work and helps the team improve, measured per student | Individual |
Keep it to four or five rows for any one project. Notice that most rows are scored individually even in a team build. That’s the same principle behind our free editable PBL rubric: a strong group product shouldn’t hide a student who can’t explain the data.
Where does Elevate the Norm fit?
This site offers free secondary science project ideas and a general PBL rubric, but not a STEM-specific rubric set.
Disclosure: Elevate the Norm is this site’s own framework, written by a grades 6–12 social studies teacher, and it hasn’t been independently evaluated. STEM teachers will find the most use in 25 project-based learning science projects for grades 6–12, which includes an engineering and design section, and in the PBL in high schools guide. If you need standards-aligned units to pair with a rubric, see where to find Common Core-aligned PBL units. Free tools live in the resources library, and the classroom culture frameworks Q&A covers 63 questions on the classroom systems that make team projects work.
Frequently Asked Questions
What is the best free rubric for high school STEM projects?
Combine PBLWorks’ free 6-12 success skills rubrics for collaboration and communication with content rows you write from the NGSS science and engineering practices and the free NGSS evidence statements for your performance expectations.
Is the EQuIP rubric used to grade students?
No. The EQuIP Rubric for Science evaluates lessons and units for NGSS design. Use it to check a unit before teaching it, and use a separate rubric to grade student work.
Does TeachEngineering include rubrics?
TeachEngineering activities include an assessment section, but what it contains varies by activity, and some are thin or empty. Check each activity and add your own rubric if needed.
How many criteria should a STEM PBL rubric have?
Four or five rows per project is usually enough. Choose the science and engineering practices the project really asks students to use, plus an individual collaboration row.
Should engineering design projects be graded as a group?
Grade the shared design as a group if you want, but score data analysis, evidence-based claims, and communication for each student individually so a strong team product does not hide gaps in understanding.
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