Learning Resources Geomakers – STEM Explorers. Spark curiosity with STEM Explorers Geomakers. Fun building challenges will test their problem-solving skills. Learn about 2-D and 3-D shapes by using the different sticks and connectors. Geomakers activity set boosts early geometry, critical thinking and fine motor skills. Includes 30 sticks: 10 small, 12 medium and 9 large, 12 curves, 6 red connectors (8 holes), 10 orange connectors (10 holes) and an Activity Guide containing 10 challenges. Suitable for ages 5+