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Organization: North Carolina Standard Course of Study
Grade Band: 7th Grade
Standard Goal: The learner will demonstrate an understanding of linear relations and fundamental algebraic concepts.
| An Introduction to Arithmetic and Geometric Sequences |
Lesson: Introduces students to arithmetic and geometric sequences. Students explore further through producing sequences by varying the starting number, multiplier, and add-on.
| | Introduction to Fractals: Infinity, Self-Similarity and Recursion |
Lesson: Introduces students to the ideas involved in understanding fractals.
| | Stem-and-Leaf Plots |
Lesson: Introduces students to stem-and-leaf plots and calculating the mean, median, and mode from the plots.
| 
Another Hilbert Curve Generator |
Activity: Students work step-by-step through the generation of a different Hilbert-like Curve (a fractal made from deforming a line by bending it), allowing them to explore number patterns in sequences and geometric properties of fractals.
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Hilbert Curve Generator |
Activity: Step through the generation of a Hilbert Curve -- a fractal made from deforming a line by bending it, and explore number patterns in sequences and geometric properties of fractals.
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Histogram |
Activity: View histograms for built-in or user-specified data. Experiment with how the size of the class intervals influences the appearance of the histogram. Parameters: Data sets, class sizes.
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Koch's Snowflake |
Activity: Step through the generation of the Koch Snowflake -- a fractal made from deforming the sides of a triangle, and explore number patterns in sequences and geometric properties of fractals.
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Sequencer |
Activity: Learn about number patterns in sequences and recursions by specifying a starting number, multiplier, and add-on. The numbers in the sequence are displayed on a graph, and they are also listed below the graph.
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Sierpinski's Carpet |
Activity: Step through the generation of Sierpinski's Carpet -- a fractal made from subdividing a square into nine smaller squares and cutting the middle one out. Explore number patterns in sequences and geometric properties of fractals.
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Sierpinski's Triangle |
Activity: Step through the generation of Sierpinski's Triangle -- a fractal made from subdividing a triangle into four smaller triangles and cutting the middle one out. Explore number patterns in sequences and geometric properties of fractals.
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Simple Plot |
Activity: Plot ordered pairs of numbers, either as a scatter plot or with the dots connected. Points are connected from right to left, rather than being connected in the order they are entered.
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Stem and Leaf Plotter |
Activity: View stem-and-leaf plots of your own data, and then practice finding means, medians and modes. Parameters: Data
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