Ideal for small groups of up to 3 students, these activity cards help students learn more about design, problem-solving, and engineering. Each card includes a challenge on one side. Students can flip it to see helpful hints and tips on the other side. Challenges are rated for difficulty, making it easy to find age- and skill-appropriate activities for students. Cards are made of durable, high-quality card stocks for long-term use. Recommended for Elementary and up.