Mr. Hennessy

We will study the ‘discriminant’ and then look at strategies for solving equations

Homework: p. 574, multiples of 3 from 3 to 18
AND p. 576, multiples of 3 from 3 to 30.

After School Math  is on!

Solve some word problems involving quadratic equations using a variety of strategies

Group project that will count as a significant quiz – based on patterns of growth.  We will graph our results on graph paper and adjust our scales to make it work.

Project on painting faces of cubes of successive sizes? 

After School Math  is on!

Honors Algebra I Exam Review Packet

Complete your first run through of the take-home test on Chapter 11.

We will finish up the take-home test and start reviewing for the final exam. Only a few periods left!

Weblinks: HotMath , Math Forum, PrintFreeGraphPaper

FormulasandLatArea

Making the transition from solving two step equation to linear equations

Use today’s pattern with tables and people to show the patterns for the long table that seated 10 people. First data table (T-chart) and graph is for putting the tables next to each other on the ends.  Second one is putting the long side of the table next to the long side of the other table.  Both sets of dots (maybe different colors) could go on the same set of axes.

Homework: TBA 

Building patterns in the morning class and graphing them in linear equations to show relationship of Levels (or inputs) and Outcomes (or outputs).    Graphing patterns using spreadsheet on computer or graphing calculators. For tonight, please try to MAKE YOUR OWN PATTERN by stacking plates or cups or chairs and measure the total height (hopefully with some constant “head start”) and then make a data table and graph it if you have time.  You might want to change your scale (make each one little square count for 2 or 3 cm or inches on the graph). Also, please PREDICT a few more levels (even if you don’t stack 10 chairs or 10 plates….) with your function rule.

6th Math Probability RE-Test May 2012

Analyze the patterns that you bring in, and then solve more equations using them.

Continue with the diagonal pattern.  Draw a seven-sided shape and then an octagon.  For each, find the number of sides and angles, then the number of NON-intersecting diagonals, and then the number of ALL diagonals even if they intersect.  So far, we had:
Triangle: 3 sides, no diagonals and no diagonals.
Quadrilateral: 4 sides, one non-intersecting and two total diagonals.
Pentagon: 5 sides, two non-intersecting diagonals and 5 total diagonals.
Hexagon: 6 sides, 3 non-intersecting and 9 total diagonals.

FIND A PATTERN!

Sequences

Extra comments or notes: FormulasandLatArea Dimensional Analysis: Start with a rectangle that is 2 in. by 8 in. and increase both dimensions by a scale factor of 5:1 to create a new rectangle that is 10 in. by 40 in.  How will the perimeter change? How will the area change?

Next, Start the 3-D version of a rectangular prism that has dimensions of 4 by 10 by 13 (feet) and increase its 3 dimensions all by a scale factor of 1:5.  Please find the surface area and volume of each of these two and show me the relationship between the two 3-D shapes and their measures.

Weblinks: 

Link to MicroWorlds Ex Project Guidelines for 4th Quarter of 8th Grade 
(NOTE: Time is running short due to Scantron Testing and 8th grade exams using most of May tech classes!)

More work in MicroWorlds Ex programming.  See info in 7th grade section, too.

We will focus on animating shapes:

Seth #   for setheading # to aim the turtle in a certain direction.

Setsh # to change the image of a turtle to the proper-numbered shape in ITS backpack.

Repeat # [ fd 3 setsh 1 wait 1 fd 3 setsh 2 wait 1 fd 3 setsh 3 wait 1]     (Change the fd amount to make it go faster or slower as needed)

Use the RULES tab in the backpack to affect OnClick,   OnColor,   OnMessage   and   OnTick   (The instructions for these can be movements, or page turners (page3, page7…..) or hide or show turtles (ht or st)

Curriculum Focus for This Quarter: Programming in the MicroWorlds environment – LogoWriter computer language.

Link to MicroWorlds EX Project Requirements
(Time is reduced for continued work in May due to Scantron Testing out of Technology Classes!)

fd 37 – moving forward 37 steps (keeping current aim or orientation)

bk 409 – moving backward 409 turtle steps

rt 72 – right turn of 72 degrees (changes AIM but does not move turtle)

lt 90 – left turn of 90 degrees

cg – clears graphics and takes turtle back to HOME position

home- does not clear graphics and takes turtle back to Home position [0 0]

setc # – sets turtle and drawing color according to number in color chart (with clip/art and shapes)

setbg # – sets background color

repeat # [ stuff ] – repeats a definite number of times any commands contained within those brackets

primitives = commands like the ones above that the turtle already knows

procedures = commands that the turtle can be taught by user typing

slider = way of setting a variable within given limits (minimum, maximum and current values)

setpos [ # # ]  or  setpos [40 -150] – moves the turtle to a set position on the screen (in this case 40 turtle steps right of center – x-coordinate, and 150 turtle steps BELOW the center line)  (can also find the turtle’s current position by opening its backpack and checking the “State” tab.

setheading # (shortcut is seth #) – this takes the turtle and aims him in a specific direction NO MATTER WHICH WAY he had been aiming prior to this command.

setsize # – setsize 40 is the basic size, I think the limits are setsize 5 up to setsize 100

setshape # – you can either use the shape names from the clip art for all turtles, OR you can drag the clip art shapes into the turtle’s backpack and use the numbers within the backpack like setsh 1  or setsh 2 …..

page3 – once a page has been created using the pulldown menu, you can turn to it with the command of just typing the page’s name. NOTE: the page # is part of the page name and it is all one word!

t1, or t2, – this is the way you speak to a specific turtle.  By default they are named t1, t2, t3, as you create them on each page.  You can rename them if you want.  

talkto [ t1 t2 t3 ] – use this command to speak to 3 or more turtles at the same time to have them follow any commands that you type next.

These courses have concluded.  

Please let me know if you have any other questions related to the test format or specific questions that you would like to review.

Thanks for participating and best of luck on the tests.  Remember that practice now is a more useful thing than worrying later…..