Texas Math Models

Try “number line” or “4.5D”

What the table says

pairs, read across

G3–4

A pack of pencils always holds the same number. What does the table say?Pencils in PacksPacksPencils16212318424each row is one pair of numbersread ACROSS a row, not down a column2 packs → 12 pencilsand the same rule has to fitevery other row as wella table is a list of pairs; the rule is what turns the left number into the right one

How this one works

How

read one row at a time; the rule turns the left number into the right one.

Best when

you are starting a table and do not know the rule yet.

seen one of these on a test? See it on a real question: TEKS 3.5E, finding the rule in a table.

The same problem, other ways