This app contains the subject matter head count of the second year (Group 4) developed in 30 exercises. Most parts contain three parts: 1st part with complete visual representation, 2nd part with intermediate outcomes, 3rd movement only visual representation for errors. The time- and share tables are discussed. This app is different from other app's that make pretty exercises but rarely error correction doen.Ik've created these exercises relying on my 25 years experience as a teacher, 1st grade. Danny Billiau
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