## InterA.BoatCurrent History

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Credits: Zoran Trifunov for idea to create simulator; Jenny Sendova for idea to have students make up questions from simulator. Thanks!

[]Credits

[]Zoran Trifunov for idea to create simulator; Jenny Sendova for idea to have students make up questions from simulator. Thanks!

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Zip for offline use - A4 paper: boat_current_A4.zip

Zip for offline use - A4 paper: boat_current_A4.zip

Credits: Zoran Trifunov for idea to create simulator; Jenny Sendova for idea to have students make up questions from simulator. Thanks!

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[]coming soon

[]Zip for offline use - USA paper: boat_current_USA.zip

Zip for offline use - A4 paper: boat_current_A4.zip

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Related Topics

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[] Up one level

Zip for offline use: tri_median_right.zip (includes handout, teachers page, 2 ggb interactivities).

Zip for offline use - USA paper: boat_current_USA.zip (includes handouts, teachers pages, html and ggb interactivity - simulator).

Zip for offline use - A4 paper: boat_current_A4.zip (includes handouts, teachers pages, html and ggb interactivity- simulator).

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[ valign=middle]Brief

[]User interacts with construction and notices that the triangle constructed under the given conditions "appears" to be a right triangle. He then uses standard 6th grade geometric facts to "prove" that the angle is in fact 90°. Finally, in a second interactivity the user constructs the triangle.

[ valign=middle]Pre-knowledge

[]The sum of the angles of a triangle is 180°, the sum of supplementary angles is 180° the angles at the base of an isosceles triangle are congruent (equal size).

[ width=110px] Global

[]Wind and River Current Problem Solving

[]Goal

[]Understanding triangles, angles and logical conclusions.

[]Brief

[]InterActivity-Simulator for Problems about a Boat in the River Current

[]6-9 (6th grade, 7th grade, pre-algebra, geometry)

[]8 (good problem for beginning systems of equations 2x2)

[]Measurement and Geometry, Geometry

[]Algebra 1 AF at Math247

Matrix Algebra Algebra at Math247

[]Standards

[]CA 6.MG.2.2, CA Geometry 13.0, ACT PF 24-27

[]Standard

[]Algebra 1 3.4 ACT EE 28-32

[]triangles, medians, right-triangles, construction, interactivity, geogebra

[]linear, equation, system, 2 variables, algebra, dynamic, freeware, applet, offline, online

[]Suitable for 6th-grade on up.

[]Images are terrible - looking for new ones :)

[]Source

[]Linda Fahlberg-Stojanovska (no copyright)

[]Download

[]coming soon

[]Cost

[]Activity and software is free to use

[]Author

[]LFS - contact

[ valign=middle]Download

[]Zip for offline use: tri_median_right.zip (includes handout, teachers page, 2 ggb interactivities)

Requires freeware GeoGebra for offline use.

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[]Java Applet so requires free sunJava player

[]Freeware - Available for Offline and Online Use - Translatable (html)

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[]Use

[]Requires sunJava player

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and step-by-step directions for using GeoGebra

- illustrated teacher guide and answers

illustrated teacher guide with answers

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[c]

[c valign=middle style="background-color:#eeeeff; font-face:Comic Sans Ms; font-size:1.2em"] half-page printable review of 2x2 systems

student handout

(opens in new window)

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[c]

[c valign=middle style="background-color:#eeeeff; font-face:Comic Sans Ms; font-size:1.2em"]2-page printable review of 2x2 systems

illustrated teacher guide with answers

(opens in new window)

[c]

[c]

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[]

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[ valign=middle]Brief

[]User interacts with construction and notices that the triangle constructed under the given conditions "appears" to be a right triangle. He then uses standard 6th grade geometric facts to "prove" that the angle is in fact 90°. Finally, in a second interactivity the user constructs the triangle.

[ valign=middle]Pre-knowledge

[]The sum of the angles of a triangle is 180°, the sum of supplementary angles is 180° the angles at the base of an isosceles triangle are congruent (equal size).

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[]Goal

[]Understanding triangles, angles and logical conclusions.

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[]Grade

[]6-9 (6th grade, 7th grade, pre-algebra, geometry)

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[]Strand

[]Measurement and Geometry, Geometry

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[]Standards

[]CA 6.MG.2.2, CA Geometry 13.0, ACT PF 24-27

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[]Keywords

[]triangles, medians, right-triangles, construction, interactivity, geogebra

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[]Comments

[]Suitable for 6th-grade on up.

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[]Source

[]Linda Fahlberg-Stojanovska (no copyright)

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[]Cost

[]Activity and software is free to use

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[ valign=middle]Download

[]Zip for offline use: tri_median_right.zip (includes handout, teachers page, 2 ggb interactivities)

Requires freeware GeoGebra for offline use.

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[]Type

[]Java Applet so requires free sunJava player