Dr. Tapp's mathematical playgrounds is the creating of an environment conducive of learning mathematics. The Playgrounds focus on presenting information in a fun and entertaining way. Playgrounds generally fit into one of four categories: Arithmetic, Geometry, Combinatorics, or Set Theory. The environment created is intended to be inviting and non-competitive.
The playground is organized by activities, and objectives. Activities that are intended to measure progress towards an objective are called stations. A child may be asked to participate in a station several times. Generally, children enjoy seeing how they improve over time. Stations can help students see their progress. Some activities are not intended to support objectives, these activities tend to be more fun and expose students to advanced subjects in an age appropriate way. Some activities could support an objective, but are not useful for evaluating achievement of an objective.
The objectives of the playground series are:
I'm targeting all objectives being taught to a 6 year-old by the time they are 12. The goal is to have the students prepared for algebra. I consider it ambitious to have the student prepared for algebra at the 12 to 14 year-old range.
When looking for factors of a number less than 529 it's enough to check all primes up to 19. If the number is over 529, technically 23 should also be checked as a factor. If a student can factor 411 completely, they should be able to factor a number less than 529 without any more difficulty. In general, objectives need limitations in order to be measurable. Of course, students can always go above and beyond the objectives.