3rd, 4th and 5th Grade Number Talks. The following resources have been created by Mollie Hall using Number Talks: Helping Children Building Mental Math and Computation Strategies (Parrish, 2010). It is recommended that you begin by reading through the book and also the following article: Number Talk Overview.
anomalies. 1  1 : something different, abnormal, peculiar, or not easily classified : something anomalous They regarded the test results as an anomaly. 2  2 : deviation from the common rule : irregularity. 3  3 : the angular distance of a planet from its perihelion as seen from the sun.
Anomalies are problems that can occur in poorly planned, un-normalised databases where all the data is stored in one table (a flat-file database). Insertion Anomaly - The nature of a database may be such that it is not possible to add a required piece of data unless another piece of unavailable data is also added. E.g. A library database that cannot store the details of a new member until that member has taken out a book.