Video Lessons

Reference

Testing for Understanding

  1. TFU #1
  2. TFU #2
  3. TFU #3
  4. TFU #4
  5. TFU #5

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Arrow Keys

Problems with arrow keys on your PC? Remember, the ascii code for arrow keys are different on PCs and Macs. Here are the codes:

Arrow Key Mac PC
left 28 37
right 29 39
up 30 38
down 31 40

Leone Learning Systems, Inc. (LLS) is a North Shore company that provides online courses for kids anywhere and local teaching and tutoring services for students in Chicago and the Northern Suburbs of Chicagoland. LLS also provides a free geometry software package for children age 6 and up, and free resources for teachers and parents. This site includes information about classes taught, availability for tutoring, learning activities for kids, lesson plans, and ongoing software and curriculum research and development efforts.