Each lesson has accompanying student and teacher handouts or worksheets. NodeXL workbooks contain four worksheets&colon; Edges, Vertices, Groups, and Overall Metrics. A collection of worksheets is called a "workbook". Some can automatically create instrumental exercises and student worksheets. Spreadsheets were developed as computerized analogs of paper accounting worksheets. Spreadsheet is a class of application software design to analyze tabular data called "worksheets". Projector slides, student worksheets, and other resources for teachers accompanied the software. Learning is supported in different ways, for instance, via worksheets, textbooks or simply informal conversation. In most implementations, many worksheets may be located within a single spreadsheet. In Windows 7, separate programmer, statistics, unit conversion, date calculation and worksheets modes were added. Activities that happen on the field trips often include&colon; lectures, tours, worksheets, videos and demonstrations. They noted that a part of class instruction was doing worksheets. The awareness sessions consist of videos, worksheets, and discussions. CoCalc directly supports Sage worksheets, which interactively evaluate Sage code. Some index worksheets combine groups 2 and 3 together, giving only 3 groups.