http://TrianCal.esy.es - Open in Google Chrome. (Triangles online calculator developed by Jesus S.)
I propose this free online calculator triangles without advertising to help students with geometry, does not perform the duties, because their calculations formulas are not displayed. It is designed in a didactic way to check and view the realized duties.
TrianCal is online calculator triangles that works with any combination of values including sides, heights, angles, the area or perimeter of any triangle, calculating it with the minimum possible value (typically three).
- Draw the triangle (s) with GeoGebra.
- Set the range of values in each element.
- The type of angle.
- The type of triangle by its angles and sides.
- Selection of language (English or Spanish).
- Select the angle type [degrees (°), radians, degrees, minutes and seconds (° ' ") or degrees and minutes (° ')].
- Number of decimal places shown in the results (0-15).
- You can use the arrow keys and the Tab key to navigate through the settings.
- Drop-down menu to select the values comfortably.
- Create a link (URL) to the current triangle.
- An icon mail to communicate with the author.
NOTE: You must use the Google Chrome browser to display correctly TrianCal.
Examples of possible combinations:
- The area, perimeter and other data (side, height or angle), if the outside equilateral triangle would not need the third data.
- 2 angles and other data (if the value of the other data is not put aside the value of "a" at the time of drawing the triangle is 10).
- One side, one high and one angle.
- 3 heights.
- 3 sides.
- 2 heights and perimeter.
- Any other combination of values.
This worksheet presents 3 questions on area of triangle and 3 questions on area of parallelogram. \n\nOnce pupils have completed the questions, they can match a parallelogram to a triangle. Each triangle will match to a parallelogram. This could also be a starting point to explaining that shapes with the same areas can have different perimeters.
Two worksheets for area and perimeter of rectangles and triangles. One is slightly simpler, as it contains more practice for rectangles and no non-right angled triangles that are not the "right way up"
There are about 17 (practical and fun) lesson activities, tasks or worksheets to cover the following 2014 objectives: <br />
Recognise angles as a property of shape or a description of a turn.<br />
Identify right angles, recognise that two right angles make a half-turn, three make three quarters of a turn and four a complete turn; identify whether angles are greater than or less than a right angle. <br />
This is one of the children's favourite activities to help understand angles. Ideas for children of all abilities to have fun learning about angles.<br />
Thank you for downloading. Please look for the large files (Flip -chart and PDF) which contain all the resources without the Paws & Clause watermark. <br />
Check out my other resources at - https://www.tes.com/teaching-resources/shop/jreadshaw
A self-contained game to be played in pairs.<br />
Use to revise reading coordinates on a grid. Best played once coordinates have already been introduced, as a consolidating activity.<br />
Differentiated versions of the game within this pack, including use of the first quadrant only, as well as all four quadrants. You will also find instructions on how to play the game within your pack. Suitable for Years 4 and 5 (on one quadrant) and Year 6 and KS3 (on all four quadrants).<br />
You will find a PDF version and editable Word version available for download; both are exactly the same, so download whichever is more convenient for you.
I have created this for a year 5 top set maths group. It is differentiated 3 ways, yellow being the less able, green able and pink more able.<br />
This links in very heavily with shape as I am teaching this following 3 weeks on shape, space and measure, so it will continue to embed their knowledge of quadrilaterals, types of triangles, angles and parallel and perpendicular lines.<br />
Hope this is useful! Have included photos of what it should look like once points have been plotted, hopefully I haven't made any silly mistakes! :-)