Showing posts with label Math. Show all posts
Showing posts with label Math. Show all posts

Monday, February 11, 2013

The Great Backyard Bird Count

Image from Cornell Lab of Ornithology  

How Many Birds Do You See?

The Great American Bird Count is a yearly activity sponsored by Cornell Lab and  Audubon. 

This years bird count is February 15-18, 2013, so get your counting fingers ready!

Image from Great American Bird Count

The Great American Bird Count is for Kids!

 There are lots of good resources to make this a fun and educational activity for everyone.

You can download this printable pdf - Guide to Common Birds --



And this one (pdf or word doc)  for keeping track of your bird count.

 *   *   *
eBird has a great tutorial on how to count birds. This would be a great math activity to practice estimating objects. 

*   *   *
Cornell has some really awesome videos, like this one:


This is the Spoon-billed Sandpiper on her/his nest, and her babies!
Definitely worth watching with your kids -- fascinating and educational.

Why her and his? What the video and listen to the video for the answer!

*     *     *     *     *

One more thing -- Participants in the Great Backyard Bird Count can win PRIZES!
Be sure to check it out -- They are giving away some nice bird-related items.

*     *     *
I'll have more bird resources in the future, so if that is something you and your children are interested in, be sure to check back!

So long, for now -- Gotta fly!

Monday, January 7, 2013

Adding Wind to the Weather

From DIY.org

Wind Engineer
 

Wind Engineers have changed the world, first with great sailing ships and now with renewable energy. By experimenting with fluid dynamics and aerodynamics, Wind Engineers have invented ways of harnessing a powerful force, through sails, kites, and turbines.
Since the wind is really part of the weather, the little voyagers will be working on this badge, along with the meteorologist badge mentioned last week. They can't wait to make pinwheels and fly kites!

There are some great kite-themed books out there to set the stage for this badge, and we plan to read several of them:
 From Amazon.com
The wind is blowing. It is a good day for kites! The whole family makes a trip to the local craft store for paper, glue, and paint. Everyone has a job: Ma-Ma joins sticks together. Ba-Ba glues paper. Mei-Mei cuts whiskers while Jie-Jie paints a laughing mouth. Dragon eyes are added and then everyone attaches the final touch . . . a noisemaker! Now their dragon kite is ready to fly.

Kite Flying celebrates the Chinese tradition of kite making and kite flying and lovingly depicts a family bonded by this ancient and modern pleasure.
From Amazon.com
Curious George loves a good windy day. There are many things he can practice flying—like a kite. Now if only he doesn’t get too carried away! This early reader explores the concepts of flight and experimentation.
From Amazon.com
Ten-year-old Ben Franklin finds working in his father's candle shop boring -- he'd much rather be doing experiments. He can't wait to try out his latest idea. With nothing but a simple kite, can Ben get across the pond -- without swimming a single stroke?
This book from Amazon.com is a MathStart book, and teaches symmetry. We might have to use this for one of the little voyagers group math lessons! Here is the blurb, to see more go to the link; it includes activities like making paper snowflakes:
When Bob and Hannah split something, the two pieces had better be symmetrical--exactly the same. But to fly their kite, they'll have to learn something new--cooperation!
From Amazon.com

And finally, a book with step-by-step instructions for making kites! Since our little voyagers vary in ages from 3 to almost 8, this looks like the perfect book. The reviews are very positive.

That's it for now; gotta fly!

Thursday, December 20, 2012

It's Raining M&M's!




It's been raining here the last couple of days and the kids are beginning to go a bit stir crazy, so I decided to pull out the big guns..That's right CANDY! 

Instead of them each working on their individual math lessons, we did a group lesson in M&M math.

*     *     *

What you will need:

Paper (we used legal size, you can tape two pieces of regular paper together)

M&M's (one pack per child)

Markers, crayons or colored pencils in: Red, orange, brown, blue. yellow,and green

Black Marker or pen

Cup

Ruler

or...you can use our printables (coming soon) and a pack of M&M's

First have your child trace the cup one circle for each color M&M (you can do this for them if they are on the younger side)




Next have your child print or trace the name of each color above it's corresponding circle.
Under each circle have them draw a line (they will be writing the amount of the color here)
Next give the instruction "You may eat the m&m's after we finish our math game. 

DO NOT EAT THEM BEFORE!" This may need to be repeated.



Have them open their pack of M&M,s and empty it in front of them, ask them to look carefully and estimate how many they have. Write that number on the top of the paper. They can also estimate how many they have of each color.




Now have them start sorting by color.

When they have all been sorted have them count each color and write the numeral on the line below.

If they estimated each color, have them see how close they were.



Next we will graph them (The graph was made ahead of time using the ruler, each square is 3/4 of an inch and numbered up to 19) Have them color a circle for each M&M at the bottom of its row.

Then have them place the M&M's inside the graph and mark where they ended. They can use this graph to check there counting from the previous sorting and counting exercise.


Ask the questions: Which has the most? Which has the least? Are there any that are equal? Older children can also be asked if there are any that are half the amount of another color. Have them note their answers on the graph. For young children, you can lead them and just have them make a mark with the color that is the most or least. 



We stopped there half way through they M&M Math Book....they did so well that we decided they could go ahead and eat them! We will follow up on our next rainy day with the remainder of the book Multiplication and Division..we will see how our 3, 5 and 7 year-old handle that.

P.S. Spiderman woke up today asking to do math, more specifically, M&M math. He took our math seriously and the M&M's were an added bonus.

CREDITS: Photos and text by Mama Voyager

Tuesday, December 18, 2012

Teaching Numbers First

Image from Totally Tots

While looking through some math books I had saved in my Google Library, I found one published in 1892. The preface surprised me! It seems that "old school" education is always being criticized as "drill and kill" and/or "not engaging," etc. The real surprise was the method employed in the book was nothing new:
The Preface continues:

The object of every teacher is  to present numbers that the mind of the child may grasp firmly the facts concerning them, and hold these facts tenaciously by the law of association. Success lies in requiring the child to show what he is talking about, and in following the "step by step" rule. The book illustrates these two principles. It abounds in examples which have not before appeared in print, and which are calculated to interest the child from their close connection with his varied experiences. It gives suggestions for versatility of drill, and illustrates in detail the teaching of a hundred topics.

And concludes with this:

It is hoped that this book will find a welcome among all persons interested in leading children by easy and sure paths to a knowledge of numbers.
G. A. WENTWORTH.
E. M. REED.
*     *     *     *     *
CHAPTER I.
INTRODUCTION.

For a successful teaching of Number the teacher needs a great variety of objects. Blocks, splints, sticks, buttons, paper patterns, peas, beans, corn, spools, counters, shells, pebbles, horse-chestnuts, acorns, little tin plates, cups and saucers, tin money, are inexpensive and convenient to handle. For measurements, the teacher must have inch measures, foot rules, yard measures, a set of tin measures, a set of wooden or paste-board measures, a set of weights, and a pair of scales.

The teaching of Number as far as ten does not include the teaching of figures or other signs used in Arithmetic. No blackboard work is required of the child until after he has learned the numbers below ten. There is no difficulty in learning the figures along with the numbers; the difficulty comes in learning the numbers along with the figures. So it seems best to ignore the sign in favor of the thing.

It is more convenient in these exercises to have the children stand about a table on which are the objects to be handled, and many of the directions to the class are given with this arrangement in view. 

Let the children illustrate each story with objects, until it is evident that the relation between the numbers is as clearly seen without the objects as with them. Whenever a mental picture is formed, then the material is a hindrance to the teaching. Objects are a means to an end, not the end. When an idea has been abstracted from the concrete, objects no longer have an office to perform, and should be put aside.

[Emphasis added]
First Step - Pre-Assess:

Ascertain the child's knowledge of Number before attempting any teaching of Number. Do this by skilful examination after the child feels at home in the schoolroom.
 
"Show me so many blocks (two blocks); so many beans; so many pebbles; so many spools; so many pencils."
 
"How many blocks have I in my hand? Come, whisper to me, if you know." 
After each has whispered the number, ask the class:
 
"How many spools did you show me? how many beans? how many blocks?"
Let the class answer in concert, "Two," each time.
 
"Show me two buttons; two boys; two girls; two chairs."

"Put two blocks on the table in front of you; put two buttons on the table; take one button from the table and put it under the table; put one block under the table."
 
If two be known, try three, and so on until a number is reached which is not known.

Second step in the examination:
Require the child to show some number with which he is familiar. For example, two.
 
"Take one of your two blocks away. How many blocks have you left?"
 
"If I have two horses and sell one horse, how many horses shall I then have?"
 
"If I have two pencils and lose one pencil, how many pencils have I left?"
 
"You may put one block on the table in front of you. You may put another block with it. How many blocks have you now shown me?"
 
"One block and one block are how many blocks?"
 
"One horse and one horse are how many horses?"
 
"If I have one pencil and buy another, how many pencils shall I have?"
 
"If John has one cent and I give him another cent, how many cents will he have?"
 
"If Susie has one apron and mamma makes her another, how many aprons will Susie have?"
 
"Show me two buttons. Take the two buttons away. How many buttons remain?"
 
"If there are two cows in the barn and two cows are turned out in the yard, how many cows remain in the barn?"
 
"Show me two boxes. Put one block in each box. How many blocks does it take?"
 
"If these two little girls have each a doll, how many dolls have they together?"
 
"If these two little boys have each a sled, how many sleds have they together?"
 
"If there are two nests, and an egg in each nest, how many eggs are there?"
 
"If there are two stores, and a wagon at each store, how many wagons are there?
 
"Show me two blocks. Put one of these two blocks in this box. Put another of your blocks in this box. How many boxes does it take?"
 
"If you have two hens, and each sits in a nest by herself, how many nests will it take?"
 
"If you have two spoons, and put each into a cup by itself, how many cups will it take?"
 
"If you have two cents, and give one each Sunday, how many Sundays can you give before the two cents will be given away?"
 
"If you have two pencils, and put each on a slate by itself, on how many slates will you put them?"

This outline for review is merely suggested as being searching in its nature. The aim should be solely to bring to light all the child's knowledge of Number, that the teacher may waste no time upon teaching him what he already knows. Do not hurry the examination. See that each child does for himself what you require, and does not imitate you or his neighbor in his work. Let each one answer for himself. Distinguish between the child's failure to understand your language and his inability to do what you require of him.

When the examination is complete, begin the teaching, and take the child where he is. As far as the experience of most primary teachers goes, few children know beyond two when they enter school for the first time. In most instances three will be the starting-point in teaching.

The ability to count up to a number does not constitute a knowledge of the number; so this must not be taken as the test of the child's knowledge. Do not permit counting by ones throughout the work in Arithmetic.
 
In the teaching of every number the order to be observed is as follows:

I. The perception of the number. 
II. Analysis of the number.
III. Drill upon facts discovered by analysis.
IV. Comparison with smaller numbers.
[Emphasis added]

What I like about the lessons in this book:

1. Much of it is done orally. Talk, Listen, Show, Relate. Very engaging, builds attention span and encourages world to self connections:


2. Discoveries. Think, connect:

3. Fact stories. So much of the lessons are oral word problems. Love this! as this is always a problem area for many children. Teacher then student:
4. There are plenty of Review exercises, similar to the main lessons.

5. Rather than break out and isolate addition, subtraction, multiplication, division and fractions, they cover many of these during the NUMBER study. In teaching the number three, it covers all of these except fractions:

6. Comparisons:
7. Write/Copy -- The chapter ends with this:
In the preface, it states this book should take four years to complete! Obviously written before textbooks became such a racket:

Here is a link to the book:

Title: The First Steps in Number
Authors: George Albert Wentworth, E. M. Reed
Publisher: Ginn, 1892
(GOOGLE LINK

These Numbers Galore worksheets look like a nice transition to numerals. They ask students to draw, tally, one more, one less, odd-even, and provide writing practice.

These worksheets are available for FREE at Wild About Teaching.