CGH pairs free learning activities with guides for educators and families

Give an interactive activity a useful starting question

Moving a slider becomes more useful when a learner first has something to predict. Crawford Group Holdings has brought three existing free browser activities into an educator resource pack with suggested investigations, answer notes and explanations of what each model leaves out.

Introduced on October 29 and independently checked live on October 30, 2026, the pack brings together Sun and Shadows from What If, Bicycle Gears from How It Works and fractions from Numerosity. Educators, families and librarians can open the activities without an account or purchase.

Explore one relationship at a time

The shadows investigation asks learners to hold conditions fixed, predict what a taller pole will do and compare the result. It also invites seasonal comparisons while explaining that the display uses local solar time. Terrain, buildings and atmospheric effects are outside the illustrative model.

Bicycle gears connects sprocket tooth counts with wheel turns and distance per pedal turn. The accompanying prompts ask why travelling farther per turn does not mean gears create energy. The model assumes an ideal chain drive rather than measuring a real bicycle’s performance.

The fractions activity connects equal-sized wholes, equivalent fractions and percentages. Numerosity supplies a worked example, hints and structured numeric practice. These are guided problem types, not unrestricted AI tutoring or proof that a learner has mastered a subject.

Preview, adapt and discuss

Each investigation is suggested as a short activity. The pack identifies possible teaching contexts, but it has not been classroom-validated and makes no claim of measured learning gains or accessibility certification. Preview the controls and explanations on the devices and with the assistive technology your learners use.

CGH also supplies current screenshots and original activity descriptions for educational use or factual editorial coverage, subject to the permissions on the resource page. Credit Crawford Group Holdings and identify the original resource URL. That permission covers the supplied CGH material; linked third-party references retain their own rights.

Start with the resource pack, choose a question that fits the learner and use the answer notes to discuss both the result and its limits.