Quick Answer

The Circuit Blox 120 Project Classroom Set is a complete STEM kit for grades 3-5, bundling four Circuit Blox 120 sets with a teacher guide and storage case—ideal for small-group or whole-class instruction.

What Makes This Set Different

Unlike a single Circuit Blox 120 set, the classroom version includes four complete sets in one sturdy storage case. That means up to four small groups can work simultaneously, which is a practical advantage for busy classrooms.

The included 79-page Teacher Guide is a major time-saver. It provides structured lessons, quizzes, and answer sheets, so you can focus on teaching rather than planning from scratch.

Curriculum Alignment and Learning Outcomes

The set is designed to address NGSS requirements, making it a defensible choice for schools that need to demonstrate standards alignment. Lessons cover electricity, circuits, motors, light, sound, switches, and telecommunications—each tied to a specific project.

Because the lessons progress from basic electricity to more complex concepts like FM communication, students build understanding step by step. This structure supports both new and experienced STEM teachers.

Trade-Offs to Consider

The catalog price is $236.79 (compared to $369.99), which is a significant investment for a single classroom kit. However, when you break it down per set, it's more economical than buying four individual sets—and you get the storage case and teacher guide included.

This set is not a complete curriculum. It's a hands-on supplement that works best when integrated into your existing science or STEM blocks. If you need a full-year program, you'll need to supplement with other materials.

Decision Rules

  • Choose if you teach grades 3-5: The lessons and projects are specifically designed for this age range, so the complexity matches their developmental level.
  • Choose if you need NGSS-aligned activities: If your school requires standards alignment, this set explicitly addresses NGSS, making it easier to justify the purchase.
  • Choose if you want a ready-to-teach resource: The teacher guide includes lessons, quizzes, and answer sheets, so you can implement it without extensive prep. Before buying, check if the storage case dimensions fit your classroom shelves.
  • Avoid if you need a full-year curriculum: This is a hands-on supplement, not a complete science program. You'll need to integrate it into your existing lesson plans.
  • Avoid if your class exceeds 16 students: With four sets, each set serves about 4 students. For larger classes, you may need to rotate groups or purchase additional sets. Consider how many students will use the set at once to ensure it fits your class size.

Product Facts

Who Should Buy This Set

Best for

  • Elementary STEM teachers in grades 3-5 who need NGSS-aligned hands-on activities
  • Schools or districts looking for a durable, organized classroom kit with multiple sets
  • Teachers who want a low-prep solution with ready-made lessons and assessments

Not for

  • Teachers needing a comprehensive, full-year science curriculum
  • Classes larger than 16 students without additional sets
  • Homeschooling families (a single Circuit Blox 120 set may be more cost-effective)