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Counting on the Number Line

Counting on the Number Line
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2014-12-02 11:26
SequenceCoordinate GeometryGeometric Construction
In collections Arithmetic: Skills & Concepts Arithmetic: Skills & Concepts Arithmetic: Skills & Concepts Place Value
This example demonstrates the geometric view of numbers using a number line and shows the correspondence with a group of objects. It utilizes commands such as Sequence, Segment, Text, and Textfield in GeoGebra to help students understand the concept of natural numbers. Suitable for high-grade elementary and junior high school students.

GeoGebra Commands & Parameters

  1. Sequence(Segment[((base * tens) + o - 1, 0), ((base * tens) + o, 0)], o, 1, ones) → list3
  2. Sequence(Sequence[Segment[(o - 1, 0), ((base * (tens - 1)) + o, 0)], o, 1, base], t, 1, tens, base) → list4
  3. Sequence(Segment[(b, 1.5), (b, 1.7)], b, 0, 50) → list6
  4. Segment((0, 1.7), (50, 1.7)) → a
  5. Sequence(Segment[((base * tens) + f - 1, 1.7), ((base * tens) + f, 1.7)], f, 1, ones) → list7
  6. Sequence(Sequence[Segment[(g - 1, 1.7), ((base * (tens - 1)) + g, 1.7)], g, 1, base], h, 1, tens, base) → list8
  7. Text(text5, ((base * tens) + ones, 2)) → text6
  8. Textfield(A1) → inputBox1
  9. Sequence(Text[ToBase[a, base], (a - 0.2, 1)], a, 0, 50) → list5
  10. Sequence(Sequence[(t - 6, o + 1.8), o, 1, base], t, 1, tens) → list2
  11. Sequence((tens + 1 - 6, o + 1.8), o, 1, ones) → list1