But if we're looking for patterns, trends, or exceptions among these values, if we want a quick sense of the story contained in these numbers, or we need to compare whole sets of numbers rather than just two at a time, this table fails. This table does two things extremely well: it expresses these sales values precisely and it provides an efficient means to look up values for a particular region and month. See section "Exceptions" in the copyright terms below. Copyright terms and licence: Unknown (pending investigation). Here's a simple table of sales data - a year's worth - divided into two regions:Īuthor/Copyright holder: Unknown (pending investigation). You could stare at a table of numbers all day and never see what would be immediately obvious when looking at a good picture of those same numbers. In other words, to visualize data effectively, we must follow design principles that are derived from an understanding of human perception.Īs the saying goes, "a picture is worth a thousand words" - often more - but only when the story is best told graphically rather than verbally and the picture is well designed. This translation of the abstract into physical attributes of vision (length, position, size, shape, and color, to name a few) can only succeed if we understand a bit about visual perception and cognition. Whether it concerns sales, incidences of disease, athletic performance, or anything else, even though it doesn't pertain to the physical world, we can still display it visually, but to do this we must find a way to give form to that which has none. The information is abstract in that it describes things that are not physical.
Important stories live in our data and data visualization is a powerful means to discover and understand these stories, and then to present them to others.
#VISUALIZE NUMBERS CODE#
Share your work by saving an image or providing a share code to others.Data visualization is the graphical display of abstract information for two purposes: sense-making (also called data analysis) and communication.Add equations, expressions, and descriptions with the math text and writing tools.Use the drawing tools to annotate work and show understanding.Hide and reveal jumps, numbers, and other elements with resizable covers to create your own problems and model strategies.Add custom tick marks and values to the blank number lines.Label jump bars, manually or automatically, to show intervals or hide labels altogether.Add and manipulate forward and backward jumps, above or below the line.Set the starting value of the line, including using negative values. Mark the number line with multiples of whole numbers, fractions, or decimals.The number line is a key model used in Bridges in Mathematics, second edition.
#VISUALIZE NUMBERS WINDOWS#
This virtual number line is an open-ended educational tool, ideal for elementary classrooms and other learning environments that use laptops, iPads, Chromebooks, or Windows devices.
Hide elements of the sequence shown on the number line, which challenges students to use what they know about number relationships and computation to identify those missing elements. Show strategies with drawing and annotation tools. Add custom tick marks to the number line to show equivalence or compare number values. Jumps can also be labelled with their values or left blank. Or use a blank number line, with or without tick marks.ĭescribe intervals between points on the line using forward or backward jumps above and below the line. Choose number lines labelled with whole numbers, fractions, decimals, or negative numbers. Number Line helps students visualize number sequences and illustrate strategies for counting, comparing, adding, subtracting, multiplying, and dividing. Number Line helps students visualize number sequences and demonstrate strategies for counting, comparing, and arithmetic.
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