Lectures	Sections in Text	Brief Description
Day 1:  1/5	1.1, 1.2, 1.3	Introduction, classification of differential equations, direction fields
Day 2:  1/7	2.2, 2.6	Separable and exact DEs
Day 3:  1/10	2.1, 2.4	Linear and nonlinear equations
Day 4:  1/12	2.3	Modeling with 1st order DEs
Day 5:  1/14	3.1, 3.4, (3.5)	Homogeneous DEs with constant coefficients, complex and repeated roots
1/17		Martin Luther King Day - Class moved to x-period
1/18		Last day to add/drop
Day 6:  1/19	3.2, 3.3	Fundamental solutions, linear independence, Wronskian
Day 7:  1/20	3.5	Reduction of order
Day 8:  1/21	3.6, 3.7	Nonhomogeneous equations, undetermined coefficients, variation of parameters
Day 9:  1/24	3.8, 3.9	Mechanical vibrations, forced vibrations
Day 10:  1/26	7.1	Systems of DEs
Day 11:  1/28	7.2, 7.3, 7.4	Matrices, eigenvalues, eigenvectors
Day 12:  1/31		First midterm exam
Day 13:  2/2	7.5, 7.6	Systems of DEs, real distinct and complex eigenvalues
Day 14:  2/3	7.6, 7.8	Systems of DEs, complex and repeated eigenvalues
Day 15:  2/4	2.5, 9.1	Critical points of autonomous 1st order DEs, phase portraits of linear systems
Day 16:  2/7	9.2	Autonomous systems and stability
Day 17:  2/9	9.3	Almost linear systems
Day 18:  2/10	5.1	Review of series
2/11		Winter Carnival - Class moved to x-period
Day 19:  2/14	5.2	Series solutions
Day 20:  2/16	5.3	Series solutions
Day 21:  2/18	10.1, 10.2	Fourier series
Day 22:  2/21		Second midterm exam
Day 23:  2/23	10.3, 10.4	Fourier Convergence Theorem, even and odd extensions
2/23		Last day to drop
Day 24:  2/25	10.5	Heat equation, separation of variables
Day 25:  2/28	10.6	Other heat equations: nonhomogeneous and insulated ends
Day 26:  3/2	10.7	Wave equation
Day 27:  3/4	10.8	Laplace equation
Day 27:  3/7		No class
Day 28:  3/9	10.7, 10.8	Review