With the «jump strategy» used on
empty number lines, students treat one number as a whole number and break the other number into manageable chunks.
Empty number lines have become common teaching tools in the Netherlands and Australia.
As students become more adept using
empty number lines, they can solve problems with fewer steps; instead of jumping by ten at a time, they might be able to jump all the tens in one jump (jump 30, or 40, or more, as called for in the problem).
In «
The Empty Number Line: A Useful Tool or Just Another Procedure?
Janette Bobis, «
The Empty Number Line: A Useful Tool or Just Another Procedure?»
In order to use
an empty number line or mental number line effectively, students need to be able to count by 10s, on and off the decade, and to jump across — or bridge — tens.
This set of 240 cards for grades K - 1 allows you to add cards to your F.U.N.
Empty Number Line System (sold separately).
This set of 338 cards for grades 2 - 3 allows you to add cards to your F.U.N.
Empty Number Line System (sold separately).
Not exact matches
«Not until it gets to the frontal lobe does the
empty set become abstracted as a value on the
number line, analogously with the behavior of the animals,» says Nieder.
Tübingen neurology researchers can now report how and where brain cells depict an
empty set as a part of the
number line.
It is also possible to take your chances on a «rush
line,» where they hand you a
number, and at the last minute they admit as many people in
line as there are
empty seats inside.
Included in this product are ten frames up to 20 (1 - 10 in red, 11 - 20 in green); two plain trees; trees with 1 - 10 red apples; trees with 1 - 10 green apples; apples labeled from 1 - 10 in both red and green; a mat for sorting apples between red and green; a plain
line art apple page; two mini-books with
empty apple trees (one with
numbers from 1 to 8, the other with blanks for the student to write
numbers of their choosing); and a page with a lion, tiger, and dog with the label «Put 10 Apples on Top.»
PRODUCT PERKS Colored - coded whole, halves, thirds, fourths, fifths, sixths, eighths, tenths, twelfths Snap alignment Fraction / decimal / percent labels Change global or specific label format Fraction wall Double
number line (unlabeled) Color - coded
number line Fractional
number line Transparency (to see overlap) Toggle between filled and
empty tiles WHAT TO TEACH Understanding Fractions Mixed
Numbers Comparing Fractions Equivalent Fractions Adding Fractions (like / unlike denominators) Dividing Fractions Includes 1 Single - User, 1 year license