InterA.BoatCurrent History

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October 21, 2008, at 03:40 PM by LFS -
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pdf Δ  or  doc

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October 20, 2008, at 11:09 PM by LFS -
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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!

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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!
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October 20, 2008, at 10:46 PM by LFS -
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Zip for offline use - A4 paper:  boat_current_A4.zip

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Zip for offline use - A4 paper: boat_current_A4.zip

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October 20, 2008, at 10:44 PM by LFS -
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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!

October 16, 2008, at 02:03 PM by LFS -
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October 16, 2008, at 02:01 PM by LFS -
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[]coming soon

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[]Zip for offline use - USA paper: boat_current_USA.zip
Zip for offline use - A4 paper:  boat_current_A4.zip

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Online Activities
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October 16, 2008, at 01:57 PM by LFS -
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October 16, 2008, at 01:51 PM by LFS -
October 16, 2008, at 01:45 PM by LFS -
October 16, 2008, at 01:30 PM by LFS -
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pdf  or  doc Δ

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

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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.

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[ 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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[  width=110px] Global
[]Wind and River Current Problem Solving

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[]Goal
[]Understanding triangles, angles and logical conclusions.

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

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

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

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[]Measurement and Geometry, Geometry

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[]Algebra 1 AF at Math247
Matrix Algebra Algebra at Math247

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

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

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[]Suitable for 6th-grade on up.

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

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[]Source
[]Linda Fahlberg-Stojanovska (no copyright)

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[]Download
[]coming soon

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[]Cost
[]Activity and software is free to use

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[]Author
[]LFS - contact

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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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[]Java Applet so requires free sunJava player

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

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Related Topics


 

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October 16, 2008, at 01:24 PM by LFS -
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October 16, 2008, at 01:21 PM by LFS -
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pdf Δ  or  doc

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and step-by-step directions for using GeoGebra

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October 16, 2008, at 01:16 PM by LFS -
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pdf  or  doc

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pdf Δ  or  doc Δ

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- illustrated teacher guide and answers

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illustrated teacher guide with answers

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[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

 

pdf Δ

 

(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

 

pdf Δ  or  doc Δ

 

(opens in new window)

October 16, 2008, at 12:55 PM by LFS -
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October 16, 2008, at 12:54 PM by LFS -
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[c]
[c valign=middle style="background-color:#eeeeff; font-face:Comic Sans Ms; font-size:1.2em"] 5-page printable
- illustrated teacher guide and answers

 

pdf Δ  or  doc Δ

 

(opens in new window)

October 16, 2008, at 12:45 PM by LFS -
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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.

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[ 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

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October 16, 2008, at 12:26 PM by LFS -
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Page last modified on October 21, 2008, at 03:40 PM